Home / 25,691.82-38,543.86-8,161.67

Finding the Fourth Proportional to 25,691.82, 38,543.86 and 8,161.67

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Solution

The fourth proportional to 25,691.82, 38,543.86 and 8,161.67 is: 12,244.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.82 : 38,543.86 = 8,161.67 : x
  2. Step 2: Convert to fraction form
    25,691.82/38,543.86 = 8,161.67/x
  3. Step 3: Cross multiply
    25,691.82x = 38,543.86 × 8,161.67
  4. Step 4: Simplify right side
    25,691.82x = 314,582,073.13
  5. Step 5: Solve for x
    x = 314,582,073.13/25,691.82
  6. Step 6: Final answer
    x = 12,244.44

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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.