Home / 39,872.05-59,845.13-20,164.75

Finding the Fourth Proportional to 39,872.05, 59,845.13 and 20,164.75

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Solution

The fourth proportional to 39,872.05, 59,845.13 and 20,164.75 is: 30,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872.05 : 59,845.13 = 20,164.75 : x
  2. Step 2: Convert to fraction form
    39,872.05/59,845.13 = 20,164.75/x
  3. Step 3: Cross multiply
    39,872.05x = 59,845.13 × 20,164.75
  4. Step 4: Simplify right side
    39,872.05x = 1,206,762,085.17
  5. Step 5: Solve for x
    x = 1,206,762,085.17/39,872.05
  6. Step 6: Final answer
    x = 30,265.87

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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.