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Finding the Fourth Proportional to 18,379.24, 27,361.01 and 18,269.89

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Solution

The fourth proportional to 18,379.24, 27,361.01 and 18,269.89 is: 27,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.24 : 27,361.01 = 18,269.89 : x
  2. Step 2: Convert to fraction form
    18,379.24/27,361.01 = 18,269.89/x
  3. Step 3: Cross multiply
    18,379.24x = 27,361.01 × 18,269.89
  4. Step 4: Simplify right side
    18,379.24x = 499,882,517.49
  5. Step 5: Solve for x
    x = 499,882,517.49/18,379.24
  6. Step 6: Final answer
    x = 27,198.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.