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Finding the Fourth Proportional to 30,855.90, 46,274.26 and 11,131.89

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Solution

The fourth proportional to 30,855.90, 46,274.26 and 11,131.89 is: 16,694.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,855.90 : 46,274.26 = 11,131.89 : x
  2. Step 2: Convert to fraction form
    30,855.90/46,274.26 = 11,131.89/x
  3. Step 3: Cross multiply
    30,855.90x = 46,274.26 × 11,131.89
  4. Step 4: Simplify right side
    30,855.90x = 515,119,972.15
  5. Step 5: Solve for x
    x = 515,119,972.15/30,855.90
  6. Step 6: Final answer
    x = 16,694.38

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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.