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Finding the Third Proportional to 15,556 and 34,137

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Solution

The third proportional to 15,556 and 34,137 is: 74,912.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556 : 34,137 = 34,137 : x
  2. Step 2: Convert to fraction form
    15,556/34,137 = 34,137/x
  3. Step 3: Cross multiply
    15,556x = 34,137 × 34,137
  4. Step 4: Simplify right side
    15,556x = 1,165,334,769
  5. Step 5: Solve for x
    x = 1,165,334,769/15,556
  6. Step 6: Final answer
    x = 74,912.24

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.