Home / 47,422.62-71,084.73-21,139.74

Finding the Fourth Proportional to 47,422.62, 71,084.73 and 21,139.74

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Solution

The fourth proportional to 47,422.62, 71,084.73 and 21,139.74 is: 31,687.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,422.62 : 71,084.73 = 21,139.74 : x
  2. Step 2: Convert to fraction form
    47,422.62/71,084.73 = 21,139.74/x
  3. Step 3: Cross multiply
    47,422.62x = 71,084.73 × 21,139.74
  4. Step 4: Simplify right side
    47,422.62x = 1,502,712,710.17
  5. Step 5: Solve for x
    x = 1,502,712,710.17/47,422.62
  6. Step 6: Final answer
    x = 31,687.68

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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.