Home / 28,757.82-43,136.49-11,239.86

Finding the Fourth Proportional to 28,757.82, 43,136.49 and 11,239.86

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Solution

The fourth proportional to 28,757.82, 43,136.49 and 11,239.86 is: 16,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.82 : 43,136.49 = 11,239.86 : x
  2. Step 2: Convert to fraction form
    28,757.82/43,136.49 = 11,239.86/x
  3. Step 3: Cross multiply
    28,757.82x = 43,136.49 × 11,239.86
  4. Step 4: Simplify right side
    28,757.82x = 484,848,108.49
  5. Step 5: Solve for x
    x = 484,848,108.49/28,757.82
  6. Step 6: Final answer
    x = 16,859.70

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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.