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Finding the Third Proportional to 12,960.09 and 28,431.19

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Solution

The third proportional to 12,960.09 and 28,431.19 is: 62,370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.09 : 28,431.19 = 28,431.19 : x
  2. Step 2: Convert to fraction form
    12,960.09/28,431.19 = 28,431.19/x
  3. Step 3: Cross multiply
    12,960.09x = 28,431.19 × 28,431.19
  4. Step 4: Simplify right side
    12,960.09x = 808,332,422.66
  5. Step 5: Solve for x
    x = 808,332,422.66/12,960.09
  6. Step 6: Final answer
    x = 62,370.88

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1.5x scale

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.