Home / 28,608.80-42,919.38-11,741.85

Finding the Fourth Proportional to 28,608.80, 42,919.38 and 11,741.85

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Solution

The fourth proportional to 28,608.80, 42,919.38 and 11,741.85 is: 17,615.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.80 : 42,919.38 = 11,741.85 : x
  2. Step 2: Convert to fraction form
    28,608.80/42,919.38 = 11,741.85/x
  3. Step 3: Cross multiply
    28,608.80x = 42,919.38 × 11,741.85
  4. Step 4: Simplify right side
    28,608.80x = 503,952,922.05
  5. Step 5: Solve for x
    x = 503,952,922.05/28,608.80
  6. Step 6: Final answer
    x = 17,615.31

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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.