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Finding the Fourth Proportional to 33,683.40, 50,525.10 and 9,991.80

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Solution

The fourth proportional to 33,683.40, 50,525.10 and 9,991.80 is: 14,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,683.40 : 50,525.10 = 9,991.80 : x
  2. Step 2: Convert to fraction form
    33,683.40/50,525.10 = 9,991.80/x
  3. Step 3: Cross multiply
    33,683.40x = 50,525.10 × 9,991.80
  4. Step 4: Simplify right side
    33,683.40x = 504,836,694.18
  5. Step 5: Solve for x
    x = 504,836,694.18/33,683.40
  6. Step 6: Final answer
    x = 14,987.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.