Home / 20,838,250.40-28,747,625.24-12,573,702.88

Finding the Fourth Proportional to 20,838,250.40, 28,747,625.24 and 12,573,702.88

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Solution

The fourth proportional to 20,838,250.40, 28,747,625.24 and 12,573,702.88 is: 17,346,182.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838,250.40 : 28,747,625.24 = 12,573,702.88 : x
  2. Step 2: Convert to fraction form
    20,838,250.40/28,747,625.24 = 12,573,702.88/x
  3. Step 3: Cross multiply
    20,838,250.40x = 28,747,625.24 × 12,573,702.88
  4. Step 4: Simplify right side
    20,838,250.40x = 361,464,098,273,348.69
  5. Step 5: Solve for x
    x = 361,464,098,273,348.69/20,838,250.40
  6. Step 6: Final answer
    x = 17,346,182.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.