Home / 18,877.20-28,321.97-5,729.58

Finding the Fourth Proportional to 18,877.20, 28,321.97 and 5,729.58

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Solution

The fourth proportional to 18,877.20, 28,321.97 and 5,729.58 is: 8,596.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.20 : 28,321.97 = 5,729.58 : x
  2. Step 2: Convert to fraction form
    18,877.20/28,321.97 = 5,729.58/x
  3. Step 3: Cross multiply
    18,877.20x = 28,321.97 × 5,729.58
  4. Step 4: Simplify right side
    18,877.20x = 162,272,992.87
  5. Step 5: Solve for x
    x = 162,272,992.87/18,877.20
  6. Step 6: Final answer
    x = 8,596.24

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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.