Home / 25,680.60-38,456.10-16,867.80

Finding the Fourth Proportional to 25,680.60, 38,456.10 and 16,867.80

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Solution

The fourth proportional to 25,680.60, 38,456.10 and 16,867.80 is: 25,259.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680.60 : 38,456.10 = 16,867.80 : x
  2. Step 2: Convert to fraction form
    25,680.60/38,456.10 = 16,867.80/x
  3. Step 3: Cross multiply
    25,680.60x = 38,456.10 × 16,867.80
  4. Step 4: Simplify right side
    25,680.60x = 648,669,803.58
  5. Step 5: Solve for x
    x = 648,669,803.58/25,680.60
  6. Step 6: Final answer
    x = 25,259.14

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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.