Home / 21,380.24-32,062.14-8,906.15

Finding the Fourth Proportional to 21,380.24, 32,062.14 and 8,906.15

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Solution

The fourth proportional to 21,380.24, 32,062.14 and 8,906.15 is: 13,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.24 : 32,062.14 = 8,906.15 : x
  2. Step 2: Convert to fraction form
    21,380.24/32,062.14 = 8,906.15/x
  3. Step 3: Cross multiply
    21,380.24x = 32,062.14 × 8,906.15
  4. Step 4: Simplify right side
    21,380.24x = 285,550,067.85
  5. Step 5: Solve for x
    x = 285,550,067.85/21,380.24
  6. Step 6: Final answer
    x = 13,355.80

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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.