Home / 39,422.60-54,401.19-21,517.46

Finding the Fourth Proportional to 39,422.60, 54,401.19 and 21,517.46

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Solution

The fourth proportional to 39,422.60, 54,401.19 and 21,517.46 is: 29,693.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,422.60 : 54,401.19 = 21,517.46 : x
  2. Step 2: Convert to fraction form
    39,422.60/54,401.19 = 21,517.46/x
  3. Step 3: Cross multiply
    39,422.60x = 54,401.19 × 21,517.46
  4. Step 4: Simplify right side
    39,422.60x = 1,170,575,429.78
  5. Step 5: Solve for x
    x = 1,170,575,429.78/39,422.60
  6. Step 6: Final answer
    x = 29,693.00

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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.