Home / 38,129.94-57,202.54-13,170.90

Finding the Fourth Proportional to 38,129.94, 57,202.54 and 13,170.90

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Solution

The fourth proportional to 38,129.94, 57,202.54 and 13,170.90 is: 19,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.94 : 57,202.54 = 13,170.90 : x
  2. Step 2: Convert to fraction form
    38,129.94/57,202.54 = 13,170.90/x
  3. Step 3: Cross multiply
    38,129.94x = 57,202.54 × 13,170.90
  4. Step 4: Simplify right side
    38,129.94x = 753,408,934.09
  5. Step 5: Solve for x
    x = 753,408,934.09/38,129.94
  6. Step 6: Final answer
    x = 19,758.99

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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.