Home / 39,965.80-59,997.30-20,234.20

Finding the Fourth Proportional to 39,965.80, 59,997.30 and 20,234.20

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Solution

The fourth proportional to 39,965.80, 59,997.30 and 20,234.20 is: 30,375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.80 : 59,997.30 = 20,234.20 : x
  2. Step 2: Convert to fraction form
    39,965.80/59,997.30 = 20,234.20/x
  3. Step 3: Cross multiply
    39,965.80x = 59,997.30 × 20,234.20
  4. Step 4: Simplify right side
    39,965.80x = 1,213,997,367.66
  5. Step 5: Solve for x
    x = 1,213,997,367.66/39,965.80
  6. Step 6: Final answer
    x = 30,375.91

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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.