Home / 39,829.55-59,781.24-20,121.98

Finding the Fourth Proportional to 39,829.55, 59,781.24 and 20,121.98

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Solution

The fourth proportional to 39,829.55, 59,781.24 and 20,121.98 is: 30,201.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,829.55 : 59,781.24 = 20,121.98 : x
  2. Step 2: Convert to fraction form
    39,829.55/59,781.24 = 20,121.98/x
  3. Step 3: Cross multiply
    39,829.55x = 59,781.24 × 20,121.98
  4. Step 4: Simplify right side
    39,829.55x = 1,202,916,616.75
  5. Step 5: Solve for x
    x = 1,202,916,616.75/39,829.55
  6. Step 6: Final answer
    x = 30,201.62

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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.