Home / 28,771.03-43,161.99-11,239.75

Finding the Fourth Proportional to 28,771.03, 43,161.99 and 11,239.75

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Solution

The fourth proportional to 28,771.03, 43,161.99 and 11,239.75 is: 16,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771.03 : 43,161.99 = 11,239.75 : x
  2. Step 2: Convert to fraction form
    28,771.03/43,161.99 = 11,239.75/x
  3. Step 3: Cross multiply
    28,771.03x = 43,161.99 × 11,239.75
  4. Step 4: Simplify right side
    28,771.03x = 485,129,977.10
  5. Step 5: Solve for x
    x = 485,129,977.10/28,771.03
  6. Step 6: Final answer
    x = 16,861.75

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Why These Related Problems?

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