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Finding the Third Proportional to 13,420 and 27,200

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Solution

The third proportional to 13,420 and 27,200 is: 55,129.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420 : 27,200 = 27,200 : x
  2. Step 2: Convert to fraction form
    13,420/27,200 = 27,200/x
  3. Step 3: Cross multiply
    13,420x = 27,200 × 27,200
  4. Step 4: Simplify right side
    13,420x = 739,840,000
  5. Step 5: Solve for x
    x = 739,840,000/13,420
  6. Step 6: Final answer
    x = 55,129.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.