Home / 25,517.76-38,278.13-7,749

Finding the Fourth Proportional to 25,517.76, 38,278.13 and 7,749

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Solution

The fourth proportional to 25,517.76, 38,278.13 and 7,749 is: 11,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,517.76 : 38,278.13 = 7,749 : x
  2. Step 2: Convert to fraction form
    25,517.76/38,278.13 = 7,749/x
  3. Step 3: Cross multiply
    25,517.76x = 38,278.13 × 7,749
  4. Step 4: Simplify right side
    25,517.76x = 296,617,229.37
  5. Step 5: Solve for x
    x = 296,617,229.37/25,517.76
  6. Step 6: Final answer
    x = 11,623.95

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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.