Home / 19,600.91-29,404.89-7,138.43

Finding the Fourth Proportional to 19,600.91, 29,404.89 and 7,138.43

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Solution

The fourth proportional to 19,600.91, 29,404.89 and 7,138.43 is: 10,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,600.91 : 29,404.89 = 7,138.43 : x
  2. Step 2: Convert to fraction form
    19,600.91/29,404.89 = 7,138.43/x
  3. Step 3: Cross multiply
    19,600.91x = 29,404.89 × 7,138.43
  4. Step 4: Simplify right side
    19,600.91x = 209,904,748.92
  5. Step 5: Solve for x
    x = 209,904,748.92/19,600.91
  6. Step 6: Final answer
    x = 10,708.93

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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.