Home / 39,134.80-58,734.60-18,107.20

Finding the Fourth Proportional to 39,134.80, 58,734.60 and 18,107.20

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Solution

The fourth proportional to 39,134.80, 58,734.60 and 18,107.20 is: 27,175.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,134.80 : 58,734.60 = 18,107.20 : x
  2. Step 2: Convert to fraction form
    39,134.80/58,734.60 = 18,107.20/x
  3. Step 3: Cross multiply
    39,134.80x = 58,734.60 × 18,107.20
  4. Step 4: Simplify right side
    39,134.80x = 1,063,519,149.12
  5. Step 5: Solve for x
    x = 1,063,519,149.12/39,134.80
  6. Step 6: Final answer
    x = 27,175.79

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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.