Home / 20,262.66-30,366.54-9,155.49

Finding the Fourth Proportional to 20,262.66, 30,366.54 and 9,155.49

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Solution

The fourth proportional to 20,262.66, 30,366.54 and 9,155.49 is: 13,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.66 : 30,366.54 = 9,155.49 : x
  2. Step 2: Convert to fraction form
    20,262.66/30,366.54 = 9,155.49/x
  3. Step 3: Cross multiply
    20,262.66x = 30,366.54 × 9,155.49
  4. Step 4: Simplify right side
    20,262.66x = 278,020,553.30
  5. Step 5: Solve for x
    x = 278,020,553.30/20,262.66
  6. Step 6: Final answer
    x = 13,720.83

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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.