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Finding the Fourth Proportional to 20,091.66, 30,183.66 and 14,182.17

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Solution

The fourth proportional to 20,091.66, 30,183.66 and 14,182.17 is: 21,305.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.66 : 30,183.66 = 14,182.17 : x
  2. Step 2: Convert to fraction form
    20,091.66/30,183.66 = 14,182.17/x
  3. Step 3: Cross multiply
    20,091.66x = 30,183.66 × 14,182.17
  4. Step 4: Simplify right side
    20,091.66x = 428,069,797.34
  5. Step 5: Solve for x
    x = 428,069,797.34/20,091.66
  6. Step 6: Final answer
    x = 21,305.85

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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.