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Finding the Third Proportional to 10,143 and 15,631

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Solution

The third proportional to 10,143 and 15,631 is: 24,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143 : 15,631 = 15,631 : x
  2. Step 2: Convert to fraction form
    10,143/15,631 = 15,631/x
  3. Step 3: Cross multiply
    10,143x = 15,631 × 15,631
  4. Step 4: Simplify right side
    10,143x = 244,328,161
  5. Step 5: Solve for x
    x = 244,328,161/10,143
  6. Step 6: Final answer
    x = 24,088.35

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.