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Finding the Third Proportional to 21,804 and 29,424

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Solution

The third proportional to 21,804 and 29,424 is: 39,707.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,804 : 29,424 = 29,424 : x
  2. Step 2: Convert to fraction form
    21,804/29,424 = 29,424/x
  3. Step 3: Cross multiply
    21,804x = 29,424 × 29,424
  4. Step 4: Simplify right side
    21,804x = 865,771,776
  5. Step 5: Solve for x
    x = 865,771,776/21,804
  6. Step 6: Final answer
    x = 39,707.02

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.