Home / 25,839.40-38,754.66-7,115.27

Finding the Fourth Proportional to 25,839.40, 38,754.66 and 7,115.27

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Solution

The fourth proportional to 25,839.40, 38,754.66 and 7,115.27 is: 10,671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,839.40 : 38,754.66 = 7,115.27 : x
  2. Step 2: Convert to fraction form
    25,839.40/38,754.66 = 7,115.27/x
  3. Step 3: Cross multiply
    25,839.40x = 38,754.66 × 7,115.27
  4. Step 4: Simplify right side
    25,839.40x = 275,749,869.66
  5. Step 5: Solve for x
    x = 275,749,869.66/25,839.40
  6. Step 6: Final answer
    x = 10,671.68

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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.