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Finding the Third Proportional to 15,235 and 21,273

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Solution

The third proportional to 15,235 and 21,273 is: 29,704.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235 : 21,273 = 21,273 : x
  2. Step 2: Convert to fraction form
    15,235/21,273 = 21,273/x
  3. Step 3: Cross multiply
    15,235x = 21,273 × 21,273
  4. Step 4: Simplify right side
    15,235x = 452,540,529
  5. Step 5: Solve for x
    x = 452,540,529/15,235
  6. Step 6: Final answer
    x = 29,704.01

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.