Home / 25,418.14-38,132.31-8,778.79

Finding the Fourth Proportional to 25,418.14, 38,132.31 and 8,778.79

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Solution

The fourth proportional to 25,418.14, 38,132.31 and 8,778.79 is: 13,169.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.14 : 38,132.31 = 8,778.79 : x
  2. Step 2: Convert to fraction form
    25,418.14/38,132.31 = 8,778.79/x
  3. Step 3: Cross multiply
    25,418.14x = 38,132.31 × 8,778.79
  4. Step 4: Simplify right side
    25,418.14x = 334,755,351.04
  5. Step 5: Solve for x
    x = 334,755,351.04/25,418.14
  6. Step 6: Final answer
    x = 13,169.94

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1.5x scale

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.