Home / 20,119.98-30,180.61-9,591.15

Finding the Fourth Proportional to 20,119.98, 30,180.61 and 9,591.15

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Solution

The fourth proportional to 20,119.98, 30,180.61 and 9,591.15 is: 14,387.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.98 : 30,180.61 = 9,591.15 : x
  2. Step 2: Convert to fraction form
    20,119.98/30,180.61 = 9,591.15/x
  3. Step 3: Cross multiply
    20,119.98x = 30,180.61 × 9,591.15
  4. Step 4: Simplify right side
    20,119.98x = 289,466,882.77
  5. Step 5: Solve for x
    x = 289,466,882.77/20,119.98
  6. Step 6: Final answer
    x = 14,387.03

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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.