Home / 38,644-57,949.12-13,675.75

Finding the Fourth Proportional to 38,644, 57,949.12 and 13,675.75

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Solution

The fourth proportional to 38,644, 57,949.12 and 13,675.75 is: 20,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644 : 57,949.12 = 13,675.75 : x
  2. Step 2: Convert to fraction form
    38,644/57,949.12 = 13,675.75/x
  3. Step 3: Cross multiply
    38,644x = 57,949.12 × 13,675.75
  4. Step 4: Simplify right side
    38,644x = 792,497,677.84
  5. Step 5: Solve for x
    x = 792,497,677.84/38,644
  6. Step 6: Final answer
    x = 20,507.65

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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.