Home / 39,517.20-59,275.67-13,221.90

Finding the Fourth Proportional to 39,517.20, 59,275.67 and 13,221.90

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Solution

The fourth proportional to 39,517.20, 59,275.67 and 13,221.90 is: 19,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,517.20 : 59,275.67 = 13,221.90 : x
  2. Step 2: Convert to fraction form
    39,517.20/59,275.67 = 13,221.90/x
  3. Step 3: Cross multiply
    39,517.20x = 59,275.67 × 13,221.90
  4. Step 4: Simplify right side
    39,517.20x = 783,736,915.06
  5. Step 5: Solve for x
    x = 783,736,915.06/39,517.20
  6. Step 6: Final answer
    x = 19,832.80

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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.