Home / 21,857.38-32,800.65-11,337.10

Finding the Fourth Proportional to 21,857.38, 32,800.65 and 11,337.10

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Solution

The fourth proportional to 21,857.38, 32,800.65 and 11,337.10 is: 17,013.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,857.38 : 32,800.65 = 11,337.10 : x
  2. Step 2: Convert to fraction form
    21,857.38/32,800.65 = 11,337.10/x
  3. Step 3: Cross multiply
    21,857.38x = 32,800.65 × 11,337.10
  4. Step 4: Simplify right side
    21,857.38x = 371,864,249.12
  5. Step 5: Solve for x
    x = 371,864,249.12/21,857.38
  6. Step 6: Final answer
    x = 17,013.21

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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.