Home / 28,721.70-43,082.55-9,000.25

Finding the Fourth Proportional to 28,721.70, 43,082.55 and 9,000.25

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Solution

The fourth proportional to 28,721.70, 43,082.55 and 9,000.25 is: 13,500.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.70 : 43,082.55 = 9,000.25 : x
  2. Step 2: Convert to fraction form
    28,721.70/43,082.55 = 9,000.25/x
  3. Step 3: Cross multiply
    28,721.70x = 43,082.55 × 9,000.25
  4. Step 4: Simplify right side
    28,721.70x = 387,753,612.93
  5. Step 5: Solve for x
    x = 387,753,612.93/28,721.70
  6. Step 6: Final answer
    x = 13,500.37

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Similar ratio
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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.