Home / 42,337.92-63,422.24-20,172.80

Finding the Fourth Proportional to 42,337.92, 63,422.24 and 20,172.80

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Solution

The fourth proportional to 42,337.92, 63,422.24 and 20,172.80 is: 30,218.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,337.92 : 63,422.24 = 20,172.80 : x
  2. Step 2: Convert to fraction form
    42,337.92/63,422.24 = 20,172.80/x
  3. Step 3: Cross multiply
    42,337.92x = 63,422.24 × 20,172.80
  4. Step 4: Simplify right side
    42,337.92x = 1,279,404,163.07
  5. Step 5: Solve for x
    x = 1,279,404,163.07/42,337.92
  6. Step 6: Final answer
    x = 30,218.87

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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.