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Finding the Third Proportional to 15,560 and 17,672

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Solution

The third proportional to 15,560 and 17,672 is: 20,070.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560 : 17,672 = 17,672 : x
  2. Step 2: Convert to fraction form
    15,560/17,672 = 17,672/x
  3. Step 3: Cross multiply
    15,560x = 17,672 × 17,672
  4. Step 4: Simplify right side
    15,560x = 312,299,584
  5. Step 5: Solve for x
    x = 312,299,584/15,560
  6. Step 6: Final answer
    x = 20,070.67

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.