Home / 21,269.54-31,906.49-8,132.96

Finding the Fourth Proportional to 21,269.54, 31,906.49 and 8,132.96

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Solution

The fourth proportional to 21,269.54, 31,906.49 and 8,132.96 is: 12,200.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.54 : 31,906.49 = 8,132.96 : x
  2. Step 2: Convert to fraction form
    21,269.54/31,906.49 = 8,132.96/x
  3. Step 3: Cross multiply
    21,269.54x = 31,906.49 × 8,132.96
  4. Step 4: Simplify right side
    21,269.54x = 259,494,206.91
  5. Step 5: Solve for x
    x = 259,494,206.91/21,269.54
  6. Step 6: Final answer
    x = 12,200.27

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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.