Home / 25,651.35-38,476.61-8,121.15

Finding the Fourth Proportional to 25,651.35, 38,476.61 and 8,121.15

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Solution

The fourth proportional to 25,651.35, 38,476.61 and 8,121.15 is: 12,181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,651.35 : 38,476.61 = 8,121.15 : x
  2. Step 2: Convert to fraction form
    25,651.35/38,476.61 = 8,121.15/x
  3. Step 3: Cross multiply
    25,651.35x = 38,476.61 × 8,121.15
  4. Step 4: Simplify right side
    25,651.35x = 312,474,280.70
  5. Step 5: Solve for x
    x = 312,474,280.70/25,651.35
  6. Step 6: Final answer
    x = 12,181.59

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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.