Home / 38,128.94-57,201.04-13,169.90

Finding the Fourth Proportional to 38,128.94, 57,201.04 and 13,169.90

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Solution

The fourth proportional to 38,128.94, 57,201.04 and 13,169.90 is: 19,757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128.94 : 57,201.04 = 13,169.90 : x
  2. Step 2: Convert to fraction form
    38,128.94/57,201.04 = 13,169.90/x
  3. Step 3: Cross multiply
    38,128.94x = 57,201.04 × 13,169.90
  4. Step 4: Simplify right side
    38,128.94x = 753,331,976.70
  5. Step 5: Solve for x
    x = 753,331,976.70/38,128.94
  6. Step 6: Final answer
    x = 19,757.49

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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.