Home / 34,221.20-51,319.68-21,033.92

Finding the Fourth Proportional to 34,221.20, 51,319.68 and 21,033.92

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Solution

The fourth proportional to 34,221.20, 51,319.68 and 21,033.92 is: 31,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,221.20 : 51,319.68 = 21,033.92 : x
  2. Step 2: Convert to fraction form
    34,221.20/51,319.68 = 21,033.92/x
  3. Step 3: Cross multiply
    34,221.20x = 51,319.68 × 21,033.92
  4. Step 4: Simplify right side
    34,221.20x = 1,079,454,043.55
  5. Step 5: Solve for x
    x = 1,079,454,043.55/34,221.20
  6. Step 6: Final answer
    x = 31,543.43

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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.