Home / 20,082.28-30,122.61-9,557.41

Finding the Fourth Proportional to 20,082.28, 30,122.61 and 9,557.41

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Solution

The fourth proportional to 20,082.28, 30,122.61 and 9,557.41 is: 14,335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.28 : 30,122.61 = 9,557.41 : x
  2. Step 2: Convert to fraction form
    20,082.28/30,122.61 = 9,557.41/x
  3. Step 3: Cross multiply
    20,082.28x = 30,122.61 × 9,557.41
  4. Step 4: Simplify right side
    20,082.28x = 287,894,134.04
  5. Step 5: Solve for x
    x = 287,894,134.04/20,082.28
  6. Step 6: Final answer
    x = 14,335.73

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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.