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Finding the Third Proportional to 15,432 and 16,904

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Solution

The third proportional to 15,432 and 16,904 is: 18,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432 : 16,904 = 16,904 : x
  2. Step 2: Convert to fraction form
    15,432/16,904 = 16,904/x
  3. Step 3: Cross multiply
    15,432x = 16,904 × 16,904
  4. Step 4: Simplify right side
    15,432x = 285,745,216
  5. Step 5: Solve for x
    x = 285,745,216/15,432
  6. Step 6: Final answer
    x = 18,516.41

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.