Home / 16,881.20-25,321.80-13,600.70

Finding the Fourth Proportional to 16,881.20, 25,321.80 and 13,600.70

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Solution

The fourth proportional to 16,881.20, 25,321.80 and 13,600.70 is: 20,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,881.20 : 25,321.80 = 13,600.70 : x
  2. Step 2: Convert to fraction form
    16,881.20/25,321.80 = 13,600.70/x
  3. Step 3: Cross multiply
    16,881.20x = 25,321.80 × 13,600.70
  4. Step 4: Simplify right side
    16,881.20x = 344,394,205.26
  5. Step 5: Solve for x
    x = 344,394,205.26/16,881.20
  6. Step 6: Final answer
    x = 20,401.05

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1.5x scale

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.