Home / 21,840.97-32,761.28-6,258.61

Finding the Fourth Proportional to 21,840.97, 32,761.28 and 6,258.61

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Solution

The fourth proportional to 21,840.97, 32,761.28 and 6,258.61 is: 9,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.97 : 32,761.28 = 6,258.61 : x
  2. Step 2: Convert to fraction form
    21,840.97/32,761.28 = 6,258.61/x
  3. Step 3: Cross multiply
    21,840.97x = 32,761.28 × 6,258.61
  4. Step 4: Simplify right side
    21,840.97x = 205,040,148.70
  5. Step 5: Solve for x
    x = 205,040,148.70/21,840.97
  6. Step 6: Final answer
    x = 9,387.87

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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.