Home / 25,850.26-38,768.30-7,125.90

Finding the Fourth Proportional to 25,850.26, 38,768.30 and 7,125.90

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Solution

The fourth proportional to 25,850.26, 38,768.30 and 7,125.90 is: 10,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,850.26 : 38,768.30 = 7,125.90 : x
  2. Step 2: Convert to fraction form
    25,850.26/38,768.30 = 7,125.90/x
  3. Step 3: Cross multiply
    25,850.26x = 38,768.30 × 7,125.90
  4. Step 4: Simplify right side
    25,850.26x = 276,259,028.97
  5. Step 5: Solve for x
    x = 276,259,028.97/25,850.26
  6. Step 6: Final answer
    x = 10,686.90

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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.