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Finding the Third Proportional to 15,688 and 25,212

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Solution

The third proportional to 15,688 and 25,212 is: 40,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,688 : 25,212 = 25,212 : x
  2. Step 2: Convert to fraction form
    15,688/25,212 = 25,212/x
  3. Step 3: Cross multiply
    15,688x = 25,212 × 25,212
  4. Step 4: Simplify right side
    15,688x = 635,644,944
  5. Step 5: Solve for x
    x = 635,644,944/15,688
  6. Step 6: Final answer
    x = 40,517.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.