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Finding the Third Proportional to 21,840 and 24,108

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Solution

The third proportional to 21,840 and 24,108 is: 26,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840 : 24,108 = 24,108 : x
  2. Step 2: Convert to fraction form
    21,840/24,108 = 24,108/x
  3. Step 3: Cross multiply
    21,840x = 24,108 × 24,108
  4. Step 4: Simplify right side
    21,840x = 581,195,664
  5. Step 5: Solve for x
    x = 581,195,664/21,840
  6. Step 6: Final answer
    x = 26,611.52

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.