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Finding the Third Proportional to 17,320 and 22,515

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Solution

The third proportional to 17,320 and 22,515 is: 29,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,320 : 22,515 = 22,515 : x
  2. Step 2: Convert to fraction form
    17,320/22,515 = 22,515/x
  3. Step 3: Cross multiply
    17,320x = 22,515 × 22,515
  4. Step 4: Simplify right side
    17,320x = 506,925,225
  5. Step 5: Solve for x
    x = 506,925,225/17,320
  6. Step 6: Final answer
    x = 29,268.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.