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Finding the Third Proportional to 15,915 and 35,008

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Solution

The third proportional to 15,915 and 35,008 is: 77,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915 : 35,008 = 35,008 : x
  2. Step 2: Convert to fraction form
    15,915/35,008 = 35,008/x
  3. Step 3: Cross multiply
    15,915x = 35,008 × 35,008
  4. Step 4: Simplify right side
    15,915x = 1,225,560,064
  5. Step 5: Solve for x
    x = 1,225,560,064/15,915
  6. Step 6: Final answer
    x = 77,006.60

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.