Home / 25,660.26-38,491.48-8,129.70

Finding the Fourth Proportional to 25,660.26, 38,491.48 and 8,129.70

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Solution

The fourth proportional to 25,660.26, 38,491.48 and 8,129.70 is: 12,194.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,660.26 : 38,491.48 = 8,129.70 : x
  2. Step 2: Convert to fraction form
    25,660.26/38,491.48 = 8,129.70/x
  3. Step 3: Cross multiply
    25,660.26x = 38,491.48 × 8,129.70
  4. Step 4: Simplify right side
    25,660.26x = 312,924,184.96
  5. Step 5: Solve for x
    x = 312,924,184.96/25,660.26
  6. Step 6: Final answer
    x = 12,194.90

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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.