Home / 38,427.86-57,640.35-12,134.18

Finding the Fourth Proportional to 38,427.86, 57,640.35 and 12,134.18

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Solution

The fourth proportional to 38,427.86, 57,640.35 and 12,134.18 is: 18,200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,427.86 : 57,640.35 = 12,134.18 : x
  2. Step 2: Convert to fraction form
    38,427.86/57,640.35 = 12,134.18/x
  3. Step 3: Cross multiply
    38,427.86x = 57,640.35 × 12,134.18
  4. Step 4: Simplify right side
    38,427.86x = 699,418,382.16
  5. Step 5: Solve for x
    x = 699,418,382.16/38,427.86
  6. Step 6: Final answer
    x = 18,200.82

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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.