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Finding the Fourth Proportional to 28,322.57, 42,481.11 and 8,601.30

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Solution

The fourth proportional to 28,322.57, 42,481.11 and 8,601.30 is: 12,901.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.57 : 42,481.11 = 8,601.30 : x
  2. Step 2: Convert to fraction form
    28,322.57/42,481.11 = 8,601.30/x
  3. Step 3: Cross multiply
    28,322.57x = 42,481.11 × 8,601.30
  4. Step 4: Simplify right side
    28,322.57x = 365,392,728.44
  5. Step 5: Solve for x
    x = 365,392,728.44/28,322.57
  6. Step 6: Final answer
    x = 12,901.11

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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.