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Finding the Third Proportional to 12,870.75 and 28,201.75

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Solution

The third proportional to 12,870.75 and 28,201.75 is: 61,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,870.75 : 28,201.75 = 28,201.75 : x
  2. Step 2: Convert to fraction form
    12,870.75/28,201.75 = 28,201.75/x
  3. Step 3: Cross multiply
    12,870.75x = 28,201.75 × 28,201.75
  4. Step 4: Simplify right side
    12,870.75x = 795,338,703.06
  5. Step 5: Solve for x
    x = 795,338,703.06/12,870.75
  6. Step 6: Final answer
    x = 61,794.28

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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.