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Finding the Fourth Proportional to 22,481.20, 33,721.80 and 22,335.40

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Solution

The fourth proportional to 22,481.20, 33,721.80 and 22,335.40 is: 33,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,481.20 : 33,721.80 = 22,335.40 : x
  2. Step 2: Convert to fraction form
    22,481.20/33,721.80 = 22,335.40/x
  3. Step 3: Cross multiply
    22,481.20x = 33,721.80 × 22,335.40
  4. Step 4: Simplify right side
    22,481.20x = 753,189,891.72
  5. Step 5: Solve for x
    x = 753,189,891.72/22,481.20
  6. Step 6: Final answer
    x = 33,503.10

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1.5x scale

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.