Home / 21,351.20-32,023.14-8,196.80

Finding the Fourth Proportional to 21,351.20, 32,023.14 and 8,196.80

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Solution

The fourth proportional to 21,351.20, 32,023.14 and 8,196.80 is: 12,293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351.20 : 32,023.14 = 8,196.80 : x
  2. Step 2: Convert to fraction form
    21,351.20/32,023.14 = 8,196.80/x
  3. Step 3: Cross multiply
    21,351.20x = 32,023.14 × 8,196.80
  4. Step 4: Simplify right side
    21,351.20x = 262,487,273.95
  5. Step 5: Solve for x
    x = 262,487,273.95/21,351.20
  6. Step 6: Final answer
    x = 12,293.79

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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.