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Finding the Fourth Proportional to 33,878.15, 46,753.45 and 20,449.13

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Solution

The fourth proportional to 33,878.15, 46,753.45 and 20,449.13 is: 28,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,878.15 : 46,753.45 = 20,449.13 : x
  2. Step 2: Convert to fraction form
    33,878.15/46,753.45 = 20,449.13/x
  3. Step 3: Cross multiply
    33,878.15x = 46,753.45 × 20,449.13
  4. Step 4: Simplify right side
    33,878.15x = 956,067,092.11
  5. Step 5: Solve for x
    x = 956,067,092.11/33,878.15
  6. Step 6: Final answer
    x = 28,220.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.