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Finding the Third Proportional to 30,755 and 39,299

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Solution

The third proportional to 30,755 and 39,299 is: 50,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,755 : 39,299 = 39,299 : x
  2. Step 2: Convert to fraction form
    30,755/39,299 = 39,299/x
  3. Step 3: Cross multiply
    30,755x = 39,299 × 39,299
  4. Step 4: Simplify right side
    30,755x = 1,544,411,401
  5. Step 5: Solve for x
    x = 1,544,411,401/30,755
  6. Step 6: Final answer
    x = 50,216.60

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.