Home / 20,737.17-28,617.24-11,305.80

Finding the Fourth Proportional to 20,737.17, 28,617.24 and 11,305.80

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Solution

The fourth proportional to 20,737.17, 28,617.24 and 11,305.80 is: 15,601.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.17 : 28,617.24 = 11,305.80 : x
  2. Step 2: Convert to fraction form
    20,737.17/28,617.24 = 11,305.80/x
  3. Step 3: Cross multiply
    20,737.17x = 28,617.24 × 11,305.80
  4. Step 4: Simplify right side
    20,737.17x = 323,540,791.99
  5. Step 5: Solve for x
    x = 323,540,791.99/20,737.17
  6. Step 6: Final answer
    x = 15,601.97

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1.5x scale

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.