Home / 21,489.62-32,234.31-11,691.18

Finding the Fourth Proportional to 21,489.62, 32,234.31 and 11,691.18

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Solution

The fourth proportional to 21,489.62, 32,234.31 and 11,691.18 is: 17,536.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.62 : 32,234.31 = 11,691.18 : x
  2. Step 2: Convert to fraction form
    21,489.62/32,234.31 = 11,691.18/x
  3. Step 3: Cross multiply
    21,489.62x = 32,234.31 × 11,691.18
  4. Step 4: Simplify right side
    21,489.62x = 376,857,120.39
  5. Step 5: Solve for x
    x = 376,857,120.39/21,489.62
  6. Step 6: Final answer
    x = 17,536.71

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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.