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Finding the Third Proportional to 15,203 and 21,394

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Solution

The third proportional to 15,203 and 21,394 is: 30,106.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203 : 21,394 = 21,394 : x
  2. Step 2: Convert to fraction form
    15,203/21,394 = 21,394/x
  3. Step 3: Cross multiply
    15,203x = 21,394 × 21,394
  4. Step 4: Simplify right side
    15,203x = 457,703,236
  5. Step 5: Solve for x
    x = 457,703,236/15,203
  6. Step 6: Final answer
    x = 30,106.11

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.