Home / 28,767.82-43,154.07-7,991.32

Finding the Fourth Proportional to 28,767.82, 43,154.07 and 7,991.32

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Solution

The fourth proportional to 28,767.82, 43,154.07 and 7,991.32 is: 11,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,767.82 : 43,154.07 = 7,991.32 : x
  2. Step 2: Convert to fraction form
    28,767.82/43,154.07 = 7,991.32/x
  3. Step 3: Cross multiply
    28,767.82x = 43,154.07 × 7,991.32
  4. Step 4: Simplify right side
    28,767.82x = 344,857,982.67
  5. Step 5: Solve for x
    x = 344,857,982.67/28,767.82
  6. Step 6: Final answer
    x = 11,987.63

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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.