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Finding the Third Proportional to 14,160 and 21,275

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Solution

The third proportional to 14,160 and 21,275 is: 31,965.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160 : 21,275 = 21,275 : x
  2. Step 2: Convert to fraction form
    14,160/21,275 = 21,275/x
  3. Step 3: Cross multiply
    14,160x = 21,275 × 21,275
  4. Step 4: Simplify right side
    14,160x = 452,625,625
  5. Step 5: Solve for x
    x = 452,625,625/14,160
  6. Step 6: Final answer
    x = 31,965.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.