Home / 20,737.72-28,618.68-11,306.44

Finding the Fourth Proportional to 20,737.72, 28,618.68 and 11,306.44

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Solution

The fourth proportional to 20,737.72, 28,618.68 and 11,306.44 is: 15,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.72 : 28,618.68 = 11,306.44 : x
  2. Step 2: Convert to fraction form
    20,737.72/28,618.68 = 11,306.44/x
  3. Step 3: Cross multiply
    20,737.72x = 28,618.68 × 11,306.44
  4. Step 4: Simplify right side
    20,737.72x = 323,575,388.30
  5. Step 5: Solve for x
    x = 323,575,388.30/20,737.72
  6. Step 6: Final answer
    x = 15,603.23

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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.