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Finding the Fourth Proportional to 31,219.35, 43,077.87 and 17,791.17

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Solution

The fourth proportional to 31,219.35, 43,077.87 and 17,791.17 is: 24,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,219.35 : 43,077.87 = 17,791.17 : x
  2. Step 2: Convert to fraction form
    31,219.35/43,077.87 = 17,791.17/x
  3. Step 3: Cross multiply
    31,219.35x = 43,077.87 × 17,791.17
  4. Step 4: Simplify right side
    31,219.35x = 766,405,708.41
  5. Step 5: Solve for x
    x = 766,405,708.41/31,219.35
  6. Step 6: Final answer
    x = 24,549.06

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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.