Make sure to set up the proportion correctly. This is the solution to $\displaystyle\frac{{35}}{{5}}=\frac{{4}}{{n}}\usepackage{cmbright}\Huge\$ , rounded to the nearest integer. Each ratio should compare things in the same order, such as free throws made to free throws attempted. The correct proportion would have been $\displaystyle\frac{{n}}{{35}}=\frac{{4}}{{5}}\usepackage{cmbright}\Huge\$ .