Home / 25,676.28-38,514.30-8,147.48

Finding the Fourth Proportional to 25,676.28, 38,514.30 and 8,147.48

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Solution

The fourth proportional to 25,676.28, 38,514.30 and 8,147.48 is: 12,221.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,676.28 : 38,514.30 = 8,147.48 : x
  2. Step 2: Convert to fraction form
    25,676.28/38,514.30 = 8,147.48/x
  3. Step 3: Cross multiply
    25,676.28x = 38,514.30 × 8,147.48
  4. Step 4: Simplify right side
    25,676.28x = 313,794,296.39
  5. Step 5: Solve for x
    x = 313,794,296.39/25,676.28
  6. Step 6: Final answer
    x = 12,221.17

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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.