Home / 38,644.29-57,966.44-21,126.42

Finding the Fourth Proportional to 38,644.29, 57,966.44 and 21,126.42

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Solution

The fourth proportional to 38,644.29, 57,966.44 and 21,126.42 is: 31,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644.29 : 57,966.44 = 21,126.42 : x
  2. Step 2: Convert to fraction form
    38,644.29/57,966.44 = 21,126.42/x
  3. Step 3: Cross multiply
    38,644.29x = 57,966.44 × 21,126.42
  4. Step 4: Simplify right side
    38,644.29x = 1,224,623,251.71
  5. Step 5: Solve for x
    x = 1,224,623,251.71/38,644.29
  6. Step 6: Final answer
    x = 31,689.63

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Similar ratio
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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.