Home / 20,601.87-30,902.79-7,451.18

Finding the Fourth Proportional to 20,601.87, 30,902.79 and 7,451.18

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Solution

The fourth proportional to 20,601.87, 30,902.79 and 7,451.18 is: 11,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.87 : 30,902.79 = 7,451.18 : x
  2. Step 2: Convert to fraction form
    20,601.87/30,902.79 = 7,451.18/x
  3. Step 3: Cross multiply
    20,601.87x = 30,902.79 × 7,451.18
  4. Step 4: Simplify right side
    20,601.87x = 230,262,096.28
  5. Step 5: Solve for x
    x = 230,262,096.28/20,601.87
  6. Step 6: Final answer
    x = 11,176.76

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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.