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Finding the Third Proportional to 8,943.75 and 15,943.50

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Solution

The third proportional to 8,943.75 and 15,943.50 is: 28,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.75 : 15,943.50 = 15,943.50 : x
  2. Step 2: Convert to fraction form
    8,943.75/15,943.50 = 15,943.50/x
  3. Step 3: Cross multiply
    8,943.75x = 15,943.50 × 15,943.50
  4. Step 4: Simplify right side
    8,943.75x = 254,195,192.25
  5. Step 5: Solve for x
    x = 254,195,192.25/8,943.75
  6. Step 6: Final answer
    x = 28,421.54

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.