Home / 20,294.96-30,436.76-8,600.18

Finding the Fourth Proportional to 20,294.96, 30,436.76 and 8,600.18

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Solution

The fourth proportional to 20,294.96, 30,436.76 and 8,600.18 is: 12,897.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.96 : 30,436.76 = 8,600.18 : x
  2. Step 2: Convert to fraction form
    20,294.96/30,436.76 = 8,600.18/x
  3. Step 3: Cross multiply
    20,294.96x = 30,436.76 × 8,600.18
  4. Step 4: Simplify right side
    20,294.96x = 261,761,419.43
  5. Step 5: Solve for x
    x = 261,761,419.43/20,294.96
  6. Step 6: Final answer
    x = 12,897.86

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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.