In this case, we'll have to carry out several steps to find the solution. 
Step 01:
Data
Wolverines' score = 28 points 
Atom's scored 3 points for every 2 points that the Wolverines
Step 02:
Proportion 
3 points Atom / 2 points Wolverines 
3 /2 = 3 : 2 
Atom's score = Wolverines' score * 3 points Atom / 2 points Wolverines
 = 28 * 3 / 2 
 = 42 
The answer is: 
Proportion: 3 / 2 = 3 : 2 
The Atom's score is 42 points