Home / 30,240.96-41,732.64-20,793.12

Finding the Fourth Proportional to 30,240.96, 41,732.64 and 20,793.12

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Solution

The fourth proportional to 30,240.96, 41,732.64 and 20,793.12 is: 28,694.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240.96 : 41,732.64 = 20,793.12 : x
  2. Step 2: Convert to fraction form
    30,240.96/41,732.64 = 20,793.12/x
  3. Step 3: Cross multiply
    30,240.96x = 41,732.64 × 20,793.12
  4. Step 4: Simplify right side
    30,240.96x = 867,751,791.44
  5. Step 5: Solve for x
    x = 867,751,791.44/30,240.96
  6. Step 6: Final answer
    x = 28,694.58

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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.