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Finding the Third Proportional to 20,557.13 and 42,670.13

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Solution

The third proportional to 20,557.13 and 42,670.13 is: 88,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.13 : 42,670.13 = 42,670.13 : x
  2. Step 2: Convert to fraction form
    20,557.13/42,670.13 = 42,670.13/x
  3. Step 3: Cross multiply
    20,557.13x = 42,670.13 × 42,670.13
  4. Step 4: Simplify right side
    20,557.13x = 1,820,739,567.52
  5. Step 5: Solve for x
    x = 1,820,739,567.52/20,557.13
  6. Step 6: Final answer
    x = 88,569.76

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.