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Finding the Third Proportional to 15,206 and 31,021

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Solution

The third proportional to 15,206 and 31,021 is: 63,284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,206 : 31,021 = 31,021 : x
  2. Step 2: Convert to fraction form
    15,206/31,021 = 31,021/x
  3. Step 3: Cross multiply
    15,206x = 31,021 × 31,021
  4. Step 4: Simplify right side
    15,206x = 962,302,441
  5. Step 5: Solve for x
    x = 962,302,441/15,206
  6. Step 6: Final answer
    x = 63,284.39

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.