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Finding the Third Proportional to 21,026 and 28,177

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Solution

The third proportional to 21,026 and 28,177 is: 37,760.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026 : 28,177 = 28,177 : x
  2. Step 2: Convert to fraction form
    21,026/28,177 = 28,177/x
  3. Step 3: Cross multiply
    21,026x = 28,177 × 28,177
  4. Step 4: Simplify right side
    21,026x = 793,943,329
  5. Step 5: Solve for x
    x = 793,943,329/21,026
  6. Step 6: Final answer
    x = 37,760.07

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.