Home / 20,761.14-28,650.36-11,329.68

Finding the Fourth Proportional to 20,761.14, 28,650.36 and 11,329.68

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Solution

The fourth proportional to 20,761.14, 28,650.36 and 11,329.68 is: 15,634.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761.14 : 28,650.36 = 11,329.68 : x
  2. Step 2: Convert to fraction form
    20,761.14/28,650.36 = 11,329.68/x
  3. Step 3: Cross multiply
    20,761.14x = 28,650.36 × 11,329.68
  4. Step 4: Simplify right side
    20,761.14x = 324,599,410.68
  5. Step 5: Solve for x
    x = 324,599,410.68/20,761.14
  6. Step 6: Final answer
    x = 15,634.95

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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.