Home / 29,191.92-40,242.60-20,225.76

Finding the Fourth Proportional to 29,191.92, 40,242.60 and 20,225.76

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Solution

The fourth proportional to 29,191.92, 40,242.60 and 20,225.76 is: 27,882.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,191.92 : 40,242.60 = 20,225.76 : x
  2. Step 2: Convert to fraction form
    29,191.92/40,242.60 = 20,225.76/x
  3. Step 3: Cross multiply
    29,191.92x = 40,242.60 × 20,225.76
  4. Step 4: Simplify right side
    29,191.92x = 813,937,169.38
  5. Step 5: Solve for x
    x = 813,937,169.38/29,191.92
  6. Step 6: Final answer
    x = 27,882.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.