Home / 38,512.83-57,765.30-10,431.75

Finding the Fourth Proportional to 38,512.83, 57,765.30 and 10,431.75

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Solution

The fourth proportional to 38,512.83, 57,765.30 and 10,431.75 is: 15,646.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512.83 : 57,765.30 = 10,431.75 : x
  2. Step 2: Convert to fraction form
    38,512.83/57,765.30 = 10,431.75/x
  3. Step 3: Cross multiply
    38,512.83x = 57,765.30 × 10,431.75
  4. Step 4: Simplify right side
    38,512.83x = 602,593,404.45
  5. Step 5: Solve for x
    x = 602,593,404.45/38,512.83
  6. Step 6: Final answer
    x = 15,646.56

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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.