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Finding the Fourth Proportional to 18,337.92, 27,516.11 and 13,667.31

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Solution

The fourth proportional to 18,337.92, 27,516.11 and 13,667.31 is: 20,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.92 : 27,516.11 = 13,667.31 : x
  2. Step 2: Convert to fraction form
    18,337.92/27,516.11 = 13,667.31/x
  3. Step 3: Cross multiply
    18,337.92x = 27,516.11 × 13,667.31
  4. Step 4: Simplify right side
    18,337.92x = 376,070,999.45
  5. Step 5: Solve for x
    x = 376,070,999.45/18,337.92
  6. Step 6: Final answer
    x = 20,507.83

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1.5x scale

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.