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Finding the Fourth Proportional to 33,135.80, 45,712.36 and 19,699.44

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Solution

The fourth proportional to 33,135.80, 45,712.36 and 19,699.44 is: 27,176.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,135.80 : 45,712.36 = 19,699.44 : x
  2. Step 2: Convert to fraction form
    33,135.80/45,712.36 = 19,699.44/x
  3. Step 3: Cross multiply
    33,135.80x = 45,712.36 × 19,699.44
  4. Step 4: Simplify right side
    33,135.80x = 900,507,893.08
  5. Step 5: Solve for x
    x = 900,507,893.08/33,135.80
  6. Step 6: Final answer
    x = 27,176.28

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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.