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Finding the Fourth Proportional to 30,073.60, 45,082.88 and 11,591.68

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Solution

The fourth proportional to 30,073.60, 45,082.88 and 11,591.68 is: 17,376.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,073.60 : 45,082.88 = 11,591.68 : x
  2. Step 2: Convert to fraction form
    30,073.60/45,082.88 = 11,591.68/x
  3. Step 3: Cross multiply
    30,073.60x = 45,082.88 × 11,591.68
  4. Step 4: Simplify right side
    30,073.60x = 522,586,318.44
  5. Step 5: Solve for x
    x = 522,586,318.44/30,073.60
  6. Step 6: Final answer
    x = 17,376.91

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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.