On a scale where the distance from earth to the sun is about 15 meters, the distance from earth to the moon is

The distance from Earth to the Moon is 38.54 millimeters in the scale.

Explanation:

Distance earth-sun=

Distance earth-moon=

First, we should find what's the equivalence between one meter on our scale and the real distance. It's the division between the distance earth-sun by the 15 meters:

So 1 meter on our scale is equivalent to meters in the real world, so now we're going to divide the distance earth-moon by the equivalence to real world of 1 meter on our scale and that's going to give us the number of meters in the scale equivalent to distance earth-moon.

Converting the answer to millimeters (knowing that 1m=1000mm)