Home / 20,737.83-28,618.23-11,306.40

Finding the Fourth Proportional to 20,737.83, 28,618.23 and 11,306.40

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Solution

The fourth proportional to 20,737.83, 28,618.23 and 11,306.40 is: 15,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.83 : 28,618.23 = 11,306.40 : x
  2. Step 2: Convert to fraction form
    20,737.83/28,618.23 = 11,306.40/x
  3. Step 3: Cross multiply
    20,737.83x = 28,618.23 × 11,306.40
  4. Step 4: Simplify right side
    20,737.83x = 323,569,155.67
  5. Step 5: Solve for x
    x = 323,569,155.67/20,737.83
  6. Step 6: Final answer
    x = 15,602.85

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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.