Explanation:
To find the value of \( m \) in the equation \( \frac{3}{8} = \frac{m}{32} \), you can cross-multiply to solve for \( m \):
\[ 3 \times 32 = 8 \times m \]
\[ 96 = 8m \]
Now, divide both sides by 8 to isolate \( m \):
\[ m = \frac{96}{8} = 12 \]
So, the solution is \( m = 12 \), which corresponds to option:
d. 12