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Finding the Third Proportional to 16,143.75 and 21,804.75

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Solution

The third proportional to 16,143.75 and 21,804.75 is: 29,450.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,143.75 : 21,804.75 = 21,804.75 : x
  2. Step 2: Convert to fraction form
    16,143.75/21,804.75 = 21,804.75/x
  3. Step 3: Cross multiply
    16,143.75x = 21,804.75 × 21,804.75
  4. Step 4: Simplify right side
    16,143.75x = 475,447,122.56
  5. Step 5: Solve for x
    x = 475,447,122.56/16,143.75
  6. Step 6: Final answer
    x = 29,450.85

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.