Home / 38,380.39-57,572.64-12,087.18

Finding the Fourth Proportional to 38,380.39, 57,572.64 and 12,087.18

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Solution

The fourth proportional to 38,380.39, 57,572.64 and 12,087.18 is: 18,131.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,380.39 : 57,572.64 = 12,087.18 : x
  2. Step 2: Convert to fraction form
    38,380.39/57,572.64 = 12,087.18/x
  3. Step 3: Cross multiply
    38,380.39x = 57,572.64 × 12,087.18
  4. Step 4: Simplify right side
    38,380.39x = 695,890,862.76
  5. Step 5: Solve for x
    x = 695,890,862.76/38,380.39
  6. Step 6: Final answer
    x = 18,131.42

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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.