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Finding the Third Proportional to 21,028 and 24,868

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Solution

The third proportional to 21,028 and 24,868 is: 29,409.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028 : 24,868 = 24,868 : x
  2. Step 2: Convert to fraction form
    21,028/24,868 = 24,868/x
  3. Step 3: Cross multiply
    21,028x = 24,868 × 24,868
  4. Step 4: Simplify right side
    21,028x = 618,417,424
  5. Step 5: Solve for x
    x = 618,417,424/21,028
  6. Step 6: Final answer
    x = 29,409.24

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.