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Finding the Third Proportional to 12,043 and 15,980.50

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Solution

The third proportional to 12,043 and 15,980.50 is: 21,205.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,043 : 15,980.50 = 15,980.50 : x
  2. Step 2: Convert to fraction form
    12,043/15,980.50 = 15,980.50/x
  3. Step 3: Cross multiply
    12,043x = 15,980.50 × 15,980.50
  4. Step 4: Simplify right side
    12,043x = 255,376,380.25
  5. Step 5: Solve for x
    x = 255,376,380.25/12,043
  6. Step 6: Final answer
    x = 21,205.38

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.