Home / 38,304.10-57,456.15-12,008.80

Finding the Fourth Proportional to 38,304.10, 57,456.15 and 12,008.80

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Solution

The fourth proportional to 38,304.10, 57,456.15 and 12,008.80 is: 18,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,304.10 : 57,456.15 = 12,008.80 : x
  2. Step 2: Convert to fraction form
    38,304.10/57,456.15 = 12,008.80/x
  3. Step 3: Cross multiply
    38,304.10x = 57,456.15 × 12,008.80
  4. Step 4: Simplify right side
    38,304.10x = 689,979,414.12
  5. Step 5: Solve for x
    x = 689,979,414.12/38,304.10
  6. Step 6: Final answer
    x = 18,013.20

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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.