Home / 25,479.69-38,169.78-16,687.95

Finding the Fourth Proportional to 25,479.69, 38,169.78 and 16,687.95

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Solution

The fourth proportional to 25,479.69, 38,169.78 and 16,687.95 is: 24,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,479.69 : 38,169.78 = 16,687.95 : x
  2. Step 2: Convert to fraction form
    25,479.69/38,169.78 = 16,687.95/x
  3. Step 3: Cross multiply
    25,479.69x = 38,169.78 × 16,687.95
  4. Step 4: Simplify right side
    25,479.69x = 636,975,380.15
  5. Step 5: Solve for x
    x = 636,975,380.15/25,479.69
  6. Step 6: Final answer
    x = 24,999.34

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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.