Home / 25,849.75-38,773.31-7,129.96

Finding the Fourth Proportional to 25,849.75, 38,773.31 and 7,129.96

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Solution

The fourth proportional to 25,849.75, 38,773.31 and 7,129.96 is: 10,694.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,849.75 : 38,773.31 = 7,129.96 : x
  2. Step 2: Convert to fraction form
    25,849.75/38,773.31 = 7,129.96/x
  3. Step 3: Cross multiply
    25,849.75x = 38,773.31 × 7,129.96
  4. Step 4: Simplify right side
    25,849.75x = 276,452,149.37
  5. Step 5: Solve for x
    x = 276,452,149.37/25,849.75
  6. Step 6: Final answer
    x = 10,694.58

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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.