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Finding the Third Proportional to 13,218.19 and 28,896.75

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Solution

The third proportional to 13,218.19 and 28,896.75 is: 63,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.19 : 28,896.75 = 28,896.75 : x
  2. Step 2: Convert to fraction form
    13,218.19/28,896.75 = 28,896.75/x
  3. Step 3: Cross multiply
    13,218.19x = 28,896.75 × 28,896.75
  4. Step 4: Simplify right side
    13,218.19x = 835,022,160.56
  5. Step 5: Solve for x
    x = 835,022,160.56/13,218.19
  6. Step 6: Final answer
    x = 63,172.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.