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Finding the Fourth Proportional to 22,304.88, 30,780.69 and 12,873.44

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Solution

The fourth proportional to 22,304.88, 30,780.69 and 12,873.44 is: 17,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,304.88 : 30,780.69 = 12,873.44 : x
  2. Step 2: Convert to fraction form
    22,304.88/30,780.69 = 12,873.44/x
  3. Step 3: Cross multiply
    22,304.88x = 30,780.69 × 12,873.44
  4. Step 4: Simplify right side
    22,304.88x = 396,253,211.97
  5. Step 5: Solve for x
    x = 396,253,211.97/22,304.88
  6. Step 6: Final answer
    x = 17,765.31

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1.5x scale

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.