Home / 39,422.22-54,401.80-21,517.52

Finding the Fourth Proportional to 39,422.22, 54,401.80 and 21,517.52

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Solution

The fourth proportional to 39,422.22, 54,401.80 and 21,517.52 is: 29,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,422.22 : 54,401.80 = 21,517.52 : x
  2. Step 2: Convert to fraction form
    39,422.22/54,401.80 = 21,517.52/x
  3. Step 3: Cross multiply
    39,422.22x = 54,401.80 × 21,517.52
  4. Step 4: Simplify right side
    39,422.22x = 1,170,592,053.61
  5. Step 5: Solve for x
    x = 1,170,592,053.61/39,422.22
  6. Step 6: Final answer
    x = 29,693.71

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1.5x scale

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.