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Finding the Third Proportional to 12,153.75 and 19,845.75

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Solution

The third proportional to 12,153.75 and 19,845.75 is: 32,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.75 : 19,845.75 = 19,845.75 : x
  2. Step 2: Convert to fraction form
    12,153.75/19,845.75 = 19,845.75/x
  3. Step 3: Cross multiply
    12,153.75x = 19,845.75 × 19,845.75
  4. Step 4: Simplify right side
    12,153.75x = 393,853,793.06
  5. Step 5: Solve for x
    x = 393,853,793.06/12,153.75
  6. Step 6: Final answer
    x = 32,405.95

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.