Home / 25,634.17-38,447.42-21,279.61

Finding the Fourth Proportional to 25,634.17, 38,447.42 and 21,279.61

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Solution

The fourth proportional to 25,634.17, 38,447.42 and 21,279.61 is: 31,916.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,634.17 : 38,447.42 = 21,279.61 : x
  2. Step 2: Convert to fraction form
    25,634.17/38,447.42 = 21,279.61/x
  3. Step 3: Cross multiply
    25,634.17x = 38,447.42 × 21,279.61
  4. Step 4: Simplify right side
    25,634.17x = 818,145,996.71
  5. Step 5: Solve for x
    x = 818,145,996.71/25,634.17
  6. Step 6: Final answer
    x = 31,916.23

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1.5x scale

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.