Home / 25,404.91-38,084.68-12,917.95

Finding the Fourth Proportional to 25,404.91, 38,084.68 and 12,917.95

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Solution

The fourth proportional to 25,404.91, 38,084.68 and 12,917.95 is: 19,365.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,404.91 : 38,084.68 = 12,917.95 : x
  2. Step 2: Convert to fraction form
    25,404.91/38,084.68 = 12,917.95/x
  3. Step 3: Cross multiply
    25,404.91x = 38,084.68 × 12,917.95
  4. Step 4: Simplify right side
    25,404.91x = 491,975,992.01
  5. Step 5: Solve for x
    x = 491,975,992.01/25,404.91
  6. Step 6: Final answer
    x = 19,365.39

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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.