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Finding the Third Proportional to 15,648 and 18,848

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Solution

The third proportional to 15,648 and 18,848 is: 22,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648 : 18,848 = 18,848 : x
  2. Step 2: Convert to fraction form
    15,648/18,848 = 18,848/x
  3. Step 3: Cross multiply
    15,648x = 18,848 × 18,848
  4. Step 4: Simplify right side
    15,648x = 355,247,104
  5. Step 5: Solve for x
    x = 355,247,104/15,648
  6. Step 6: Final answer
    x = 22,702.40

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.