Home / 38,079.11-57,125.15-19,112.79

Finding the Fourth Proportional to 38,079.11, 57,125.15 and 19,112.79

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Solution

The fourth proportional to 38,079.11, 57,125.15 and 19,112.79 is: 28,672.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,079.11 : 57,125.15 = 19,112.79 : x
  2. Step 2: Convert to fraction form
    38,079.11/57,125.15 = 19,112.79/x
  3. Step 3: Cross multiply
    38,079.11x = 57,125.15 × 19,112.79
  4. Step 4: Simplify right side
    38,079.11x = 1,091,820,900.10
  5. Step 5: Solve for x
    x = 1,091,820,900.10/38,079.11
  6. Step 6: Final answer
    x = 28,672.44

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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.