Home / 20,542.92-28,342.56-11,466.79

Finding the Fourth Proportional to 20,542.92, 28,342.56 and 11,466.79

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Solution

The fourth proportional to 20,542.92, 28,342.56 and 11,466.79 is: 15,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.92 : 28,342.56 = 11,466.79 : x
  2. Step 2: Convert to fraction form
    20,542.92/28,342.56 = 11,466.79/x
  3. Step 3: Cross multiply
    20,542.92x = 28,342.56 × 11,466.79
  4. Step 4: Simplify right side
    20,542.92x = 324,998,183.58
  5. Step 5: Solve for x
    x = 324,998,183.58/20,542.92
  6. Step 6: Final answer
    x = 15,820.45

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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.