Home / 39,754.50-54,862.36-21,850.66

Finding the Fourth Proportional to 39,754.50, 54,862.36 and 21,850.66

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Solution

The fourth proportional to 39,754.50, 54,862.36 and 21,850.66 is: 30,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,754.50 : 54,862.36 = 21,850.66 : x
  2. Step 2: Convert to fraction form
    39,754.50/54,862.36 = 21,850.66/x
  3. Step 3: Cross multiply
    39,754.50x = 54,862.36 × 21,850.66
  4. Step 4: Simplify right side
    39,754.50x = 1,198,778,789.11
  5. Step 5: Solve for x
    x = 1,198,778,789.11/39,754.50
  6. Step 6: Final answer
    x = 30,154.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.