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Finding the Third Proportional to 15,941.18 and 21,425.77

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Solution

The third proportional to 15,941.18 and 21,425.77 is: 28,797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.18 : 21,425.77 = 21,425.77 : x
  2. Step 2: Convert to fraction form
    15,941.18/21,425.77 = 21,425.77/x
  3. Step 3: Cross multiply
    15,941.18x = 21,425.77 × 21,425.77
  4. Step 4: Simplify right side
    15,941.18x = 459,063,432.62
  5. Step 5: Solve for x
    x = 459,063,432.62/15,941.18
  6. Step 6: Final answer
    x = 28,797.33

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.