Home / 38,086.32-57,137.82-11,431.20

Finding the Fourth Proportional to 38,086.32, 57,137.82 and 11,431.20

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Solution

The fourth proportional to 38,086.32, 57,137.82 and 11,431.20 is: 17,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,086.32 : 57,137.82 = 11,431.20 : x
  2. Step 2: Convert to fraction form
    38,086.32/57,137.82 = 11,431.20/x
  3. Step 3: Cross multiply
    38,086.32x = 57,137.82 × 11,431.20
  4. Step 4: Simplify right side
    38,086.32x = 653,153,847.98
  5. Step 5: Solve for x
    x = 653,153,847.98/38,086.32
  6. Step 6: Final answer
    x = 17,149.30

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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.