Home / 19,917.14-29,877.24-5,126.21

Finding the Fourth Proportional to 19,917.14, 29,877.24 and 5,126.21

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Solution

The fourth proportional to 19,917.14, 29,877.24 and 5,126.21 is: 7,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.14 : 29,877.24 = 5,126.21 : x
  2. Step 2: Convert to fraction form
    19,917.14/29,877.24 = 5,126.21/x
  3. Step 3: Cross multiply
    19,917.14x = 29,877.24 × 5,126.21
  4. Step 4: Simplify right side
    19,917.14x = 153,156,876.30
  5. Step 5: Solve for x
    x = 153,156,876.30/19,917.14
  6. Step 6: Final answer
    x = 7,689.70

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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.