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Finding the Third Proportional to 15,081 and 21,339.75

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Solution

The third proportional to 15,081 and 21,339.75 is: 30,195.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081 : 21,339.75 = 21,339.75 : x
  2. Step 2: Convert to fraction form
    15,081/21,339.75 = 21,339.75/x
  3. Step 3: Cross multiply
    15,081x = 21,339.75 × 21,339.75
  4. Step 4: Simplify right side
    15,081x = 455,384,930.06
  5. Step 5: Solve for x
    x = 455,384,930.06/15,081
  6. Step 6: Final answer
    x = 30,195.94

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.