Home / 20,092.62-27,727.50-11,139.90

Finding the Fourth Proportional to 20,092.62, 27,727.50 and 11,139.90

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Solution

The fourth proportional to 20,092.62, 27,727.50 and 11,139.90 is: 15,372.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.62 : 27,727.50 = 11,139.90 : x
  2. Step 2: Convert to fraction form
    20,092.62/27,727.50 = 11,139.90/x
  3. Step 3: Cross multiply
    20,092.62x = 27,727.50 × 11,139.90
  4. Step 4: Simplify right side
    20,092.62x = 308,881,577.25
  5. Step 5: Solve for x
    x = 308,881,577.25/20,092.62
  6. Step 6: Final answer
    x = 15,372.89

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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.