Home / 25,691.90-38,514.49-9,886.85

Finding the Fourth Proportional to 25,691.90, 38,514.49 and 9,886.85

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Solution

The fourth proportional to 25,691.90, 38,514.49 and 9,886.85 is: 14,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.90 : 38,514.49 = 9,886.85 : x
  2. Step 2: Convert to fraction form
    25,691.90/38,514.49 = 9,886.85/x
  3. Step 3: Cross multiply
    25,691.90x = 38,514.49 × 9,886.85
  4. Step 4: Simplify right side
    25,691.90x = 380,787,064.50
  5. Step 5: Solve for x
    x = 380,787,064.50/25,691.90
  6. Step 6: Final answer
    x = 14,821.29

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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.