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Finding the Third Proportional to 12,928.36 and 28,628.44

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Solution

The third proportional to 12,928.36 and 28,628.44 is: 63,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.36 : 28,628.44 = 28,628.44 : x
  2. Step 2: Convert to fraction form
    12,928.36/28,628.44 = 28,628.44/x
  3. Step 3: Cross multiply
    12,928.36x = 28,628.44 × 28,628.44
  4. Step 4: Simplify right side
    12,928.36x = 819,587,433.69
  5. Step 5: Solve for x
    x = 819,587,433.69/12,928.36
  6. Step 6: Final answer
    x = 63,394.54

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.