Set Up and Solve a Proportion for Each Application Problem $22 \frac{1}{3}$

Set up and solve a proportion for each application problem.
-A 12 -inch stick casts a shadow 15 inches long. How long is a stick which casts a shadow 40 inches long?

A) $22 \frac{1}{3}$ inches
B) $13 \frac{1}{3}$
C) 50 inches
D) 32 inches