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Finding the Third Proportional to 18,279 and 30,381.75

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Solution

The third proportional to 18,279 and 30,381.75 is: 50,497.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279 : 30,381.75 = 30,381.75 : x
  2. Step 2: Convert to fraction form
    18,279/30,381.75 = 30,381.75/x
  3. Step 3: Cross multiply
    18,279x = 30,381.75 × 30,381.75
  4. Step 4: Simplify right side
    18,279x = 923,050,733.06
  5. Step 5: Solve for x
    x = 923,050,733.06/18,279
  6. Step 6: Final answer
    x = 50,497.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.