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Finding the Fourth Proportional to 28,232.52, 42,348.06 and 7,456.20

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Solution

The fourth proportional to 28,232.52, 42,348.06 and 7,456.20 is: 11,184.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.52 : 42,348.06 = 7,456.20 : x
  2. Step 2: Convert to fraction form
    28,232.52/42,348.06 = 7,456.20/x
  3. Step 3: Cross multiply
    28,232.52x = 42,348.06 × 7,456.20
  4. Step 4: Simplify right side
    28,232.52x = 315,755,604.97
  5. Step 5: Solve for x
    x = 315,755,604.97/28,232.52
  6. Step 6: Final answer
    x = 11,184.11

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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.