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Finding the Third Proportional to 21,088 and 29,976

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Solution

The third proportional to 21,088 and 29,976 is: 42,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088 : 29,976 = 29,976 : x
  2. Step 2: Convert to fraction form
    21,088/29,976 = 29,976/x
  3. Step 3: Cross multiply
    21,088x = 29,976 × 29,976
  4. Step 4: Simplify right side
    21,088x = 898,560,576
  5. Step 5: Solve for x
    x = 898,560,576/21,088
  6. Step 6: Final answer
    x = 42,610.04

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.