Home / 28,698.24-43,049.82-7,921.74

Finding the Fourth Proportional to 28,698.24, 43,049.82 and 7,921.74

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Solution

The fourth proportional to 28,698.24, 43,049.82 and 7,921.74 is: 11,883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,698.24 : 43,049.82 = 7,921.74 : x
  2. Step 2: Convert to fraction form
    28,698.24/43,049.82 = 7,921.74/x
  3. Step 3: Cross multiply
    28,698.24x = 43,049.82 × 7,921.74
  4. Step 4: Simplify right side
    28,698.24x = 341,029,481.09
  5. Step 5: Solve for x
    x = 341,029,481.09/28,698.24
  6. Step 6: Final answer
    x = 11,883.29

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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.