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Finding the Third Proportional to 15,207.75 and 31,947.75

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Solution

The third proportional to 15,207.75 and 31,947.75 is: 67,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.75 : 31,947.75 = 31,947.75 : x
  2. Step 2: Convert to fraction form
    15,207.75/31,947.75 = 31,947.75/x
  3. Step 3: Cross multiply
    15,207.75x = 31,947.75 × 31,947.75
  4. Step 4: Simplify right side
    15,207.75x = 1,020,658,730.06
  5. Step 5: Solve for x
    x = 1,020,658,730.06/15,207.75
  6. Step 6: Final answer
    x = 67,114.38

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.