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Finding the Third Proportional to 21,283 and 45,769

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Solution

The third proportional to 21,283 and 45,769 is: 98,426.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283 : 45,769 = 45,769 : x
  2. Step 2: Convert to fraction form
    21,283/45,769 = 45,769/x
  3. Step 3: Cross multiply
    21,283x = 45,769 × 45,769
  4. Step 4: Simplify right side
    21,283x = 2,094,801,361
  5. Step 5: Solve for x
    x = 2,094,801,361/21,283
  6. Step 6: Final answer
    x = 98,426.04

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.