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Finding the Fourth Proportional to 18,296.42, 27,379.01 and 15,839.69

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Solution

The fourth proportional to 18,296.42, 27,379.01 and 15,839.69 is: 23,702.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.42 : 27,379.01 = 15,839.69 : x
  2. Step 2: Convert to fraction form
    18,296.42/27,379.01 = 15,839.69/x
  3. Step 3: Cross multiply
    18,296.42x = 27,379.01 × 15,839.69
  4. Step 4: Simplify right side
    18,296.42x = 433,674,933.61
  5. Step 5: Solve for x
    x = 433,674,933.61/18,296.42
  6. Step 6: Final answer
    x = 23,702.73

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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.