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Finding the Third Proportional to 8,672.06 and 21,315.66

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Solution

The third proportional to 8,672.06 and 21,315.66 is: 52,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.06 : 21,315.66 = 21,315.66 : x
  2. Step 2: Convert to fraction form
    8,672.06/21,315.66 = 21,315.66/x
  3. Step 3: Cross multiply
    8,672.06x = 21,315.66 × 21,315.66
  4. Step 4: Simplify right side
    8,672.06x = 454,357,201.37
  5. Step 5: Solve for x
    x = 454,357,201.37/8,672.06
  6. Step 6: Final answer
    x = 52,393.21

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Why These Related Problems?

These problems maintain the same ratio (2.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.