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Finding the Third Proportional to 15,207 and 23,280

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Solution

The third proportional to 15,207 and 23,280 is: 35,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207 : 23,280 = 23,280 : x
  2. Step 2: Convert to fraction form
    15,207/23,280 = 23,280/x
  3. Step 3: Cross multiply
    15,207x = 23,280 × 23,280
  4. Step 4: Simplify right side
    15,207x = 541,958,400
  5. Step 5: Solve for x
    x = 541,958,400/15,207
  6. Step 6: Final answer
    x = 35,638.75

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.