Home / 13,524.20-20,286.30-13,005.80

Finding the Fourth Proportional to 13,524.20, 20,286.30 and 13,005.80

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Solution

The fourth proportional to 13,524.20, 20,286.30 and 13,005.80 is: 19,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.20 : 20,286.30 = 13,005.80 : x
  2. Step 2: Convert to fraction form
    13,524.20/20,286.30 = 13,005.80/x
  3. Step 3: Cross multiply
    13,524.20x = 20,286.30 × 13,005.80
  4. Step 4: Simplify right side
    13,524.20x = 263,839,560.54
  5. Step 5: Solve for x
    x = 263,839,560.54/13,524.20
  6. Step 6: Final answer
    x = 19,508.70

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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.