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Finding the Third Proportional to 17,912 and 38,803

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Solution

The third proportional to 17,912 and 38,803 is: 84,059.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,912 : 38,803 = 38,803 : x
  2. Step 2: Convert to fraction form
    17,912/38,803 = 38,803/x
  3. Step 3: Cross multiply
    17,912x = 38,803 × 38,803
  4. Step 4: Simplify right side
    17,912x = 1,505,672,809
  5. Step 5: Solve for x
    x = 1,505,672,809/17,912
  6. Step 6: Final answer
    x = 84,059.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.