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Finding the Third Proportional to 20,827.90 and 29,763.07

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Solution

The third proportional to 20,827.90 and 29,763.07 is: 42,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.90 : 29,763.07 = 29,763.07 : x
  2. Step 2: Convert to fraction form
    20,827.90/29,763.07 = 29,763.07/x
  3. Step 3: Cross multiply
    20,827.90x = 29,763.07 × 29,763.07
  4. Step 4: Simplify right side
    20,827.90x = 885,840,354.43
  5. Step 5: Solve for x
    x = 885,840,354.43/20,827.90
  6. Step 6: Final answer
    x = 42,531.43

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.