Home / 38,129.27-57,184.79-13,170.20

Finding the Fourth Proportional to 38,129.27, 57,184.79 and 13,170.20

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Solution

The fourth proportional to 38,129.27, 57,184.79 and 13,170.20 is: 19,752.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.27 : 57,184.79 = 13,170.20 : x
  2. Step 2: Convert to fraction form
    38,129.27/57,184.79 = 13,170.20/x
  3. Step 3: Cross multiply
    38,129.27x = 57,184.79 × 13,170.20
  4. Step 4: Simplify right side
    38,129.27x = 753,134,769.48
  5. Step 5: Solve for x
    x = 753,134,769.48/38,129.27
  6. Step 6: Final answer
    x = 19,752.14

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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.