Home / 32.80-45.24-20.52

Finding the Fourth Proportional to 32.80, 45.24 and 20.52

Calculator

Solution

The fourth proportional to 32.80, 45.24 and 20.52 is: 28.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.80 : 45.24 = 20.52 : x
  2. Step 2: Convert to fraction form
    32.80/45.24 = 20.52/x
  3. Step 3: Cross multiply
    32.80x = 45.24 × 20.52
  4. Step 4: Simplify right side
    32.80x = 928.32
  5. Step 5: Solve for x
    x = 928.32/32.80
  6. Step 6: Final answer
    x = 28.30

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.