Home / 20,753.68-31,113.06-9,654.70

Finding the Fourth Proportional to 20,753.68, 31,113.06 and 9,654.70

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Solution

The fourth proportional to 20,753.68, 31,113.06 and 9,654.70 is: 14,473.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.68 : 31,113.06 = 9,654.70 : x
  2. Step 2: Convert to fraction form
    20,753.68/31,113.06 = 9,654.70/x
  3. Step 3: Cross multiply
    20,753.68x = 31,113.06 × 9,654.70
  4. Step 4: Simplify right side
    20,753.68x = 300,387,260.38
  5. Step 5: Solve for x
    x = 300,387,260.38/20,753.68
  6. Step 6: Final answer
    x = 14,473.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.