Home / 20,741.05-28,624.35-11,791.36

Finding the Fourth Proportional to 20,741.05, 28,624.35 and 11,791.36

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Solution

The fourth proportional to 20,741.05, 28,624.35 and 11,791.36 is: 16,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.05 : 28,624.35 = 11,791.36 : x
  2. Step 2: Convert to fraction form
    20,741.05/28,624.35 = 11,791.36/x
  3. Step 3: Cross multiply
    20,741.05x = 28,624.35 × 11,791.36
  4. Step 4: Simplify right side
    20,741.05x = 337,520,015.62
  5. Step 5: Solve for x
    x = 337,520,015.62/20,741.05
  6. Step 6: Final answer
    x = 16,273.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.