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Finding the Third Proportional to 20,934.56 and 28,427.63

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Solution

The third proportional to 20,934.56 and 28,427.63 is: 38,602.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.56 : 28,427.63 = 28,427.63 : x
  2. Step 2: Convert to fraction form
    20,934.56/28,427.63 = 28,427.63/x
  3. Step 3: Cross multiply
    20,934.56x = 28,427.63 × 28,427.63
  4. Step 4: Simplify right side
    20,934.56x = 808,129,863.14
  5. Step 5: Solve for x
    x = 808,129,863.14/20,934.56
  6. Step 6: Final answer
    x = 38,602.66

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.