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Finding the Third Proportional to 17,865.50 and 39,961

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Solution

The third proportional to 17,865.50 and 39,961 is: 89,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865.50 : 39,961 = 39,961 : x
  2. Step 2: Convert to fraction form
    17,865.50/39,961 = 39,961/x
  3. Step 3: Cross multiply
    17,865.50x = 39,961 × 39,961
  4. Step 4: Simplify right side
    17,865.50x = 1,596,881,521
  5. Step 5: Solve for x
    x = 1,596,881,521/17,865.50
  6. Step 6: Final answer
    x = 89,383.53

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Why These Related Problems?

These problems maintain the same ratio (2.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.