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Finding the Third Proportional to 10,176 and 19,680

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Solution

The third proportional to 10,176 and 19,680 is: 38,060.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,176 : 19,680 = 19,680 : x
  2. Step 2: Convert to fraction form
    10,176/19,680 = 19,680/x
  3. Step 3: Cross multiply
    10,176x = 19,680 × 19,680
  4. Step 4: Simplify right side
    10,176x = 387,302,400
  5. Step 5: Solve for x
    x = 387,302,400/10,176
  6. Step 6: Final answer
    x = 38,060.38

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Why These Related Problems?

These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.