Home / 20,737.76-28,618.08-11,306.32

Finding the Fourth Proportional to 20,737.76, 28,618.08 and 11,306.32

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Solution

The fourth proportional to 20,737.76, 28,618.08 and 11,306.32 is: 15,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.76 : 28,618.08 = 11,306.32 : x
  2. Step 2: Convert to fraction form
    20,737.76/28,618.08 = 11,306.32/x
  3. Step 3: Cross multiply
    20,737.76x = 28,618.08 × 11,306.32
  4. Step 4: Simplify right side
    20,737.76x = 323,565,056.32
  5. Step 5: Solve for x
    x = 323,565,056.32/20,737.76
  6. Step 6: Final answer
    x = 15,602.70

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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.