Home / 38,411.31-57,616.97-12,118.10

Finding the Fourth Proportional to 38,411.31, 57,616.97 and 12,118.10

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Solution

The fourth proportional to 38,411.31, 57,616.97 and 12,118.10 is: 18,177.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,411.31 : 57,616.97 = 12,118.10 : x
  2. Step 2: Convert to fraction form
    38,411.31/57,616.97 = 12,118.10/x
  3. Step 3: Cross multiply
    38,411.31x = 57,616.97 × 12,118.10
  4. Step 4: Simplify right side
    38,411.31x = 698,208,287.61
  5. Step 5: Solve for x
    x = 698,208,287.61/38,411.31
  6. Step 6: Final answer
    x = 18,177.15

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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.