Home / 38,086.21-57,142.28-19,605.25

Finding the Fourth Proportional to 38,086.21, 57,142.28 and 19,605.25

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Solution

The fourth proportional to 38,086.21, 57,142.28 and 19,605.25 is: 29,414.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,086.21 : 57,142.28 = 19,605.25 : x
  2. Step 2: Convert to fraction form
    38,086.21/57,142.28 = 19,605.25/x
  3. Step 3: Cross multiply
    38,086.21x = 57,142.28 × 19,605.25
  4. Step 4: Simplify right side
    38,086.21x = 1,120,288,684.97
  5. Step 5: Solve for x
    x = 1,120,288,684.97/38,086.21
  6. Step 6: Final answer
    x = 29,414.55

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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.