Home / 20,832.54-28,754.94-11,884.92

Finding the Fourth Proportional to 20,832.54, 28,754.94 and 11,884.92

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Solution

The fourth proportional to 20,832.54, 28,754.94 and 11,884.92 is: 16,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.54 : 28,754.94 = 11,884.92 : x
  2. Step 2: Convert to fraction form
    20,832.54/28,754.94 = 11,884.92/x
  3. Step 3: Cross multiply
    20,832.54x = 28,754.94 × 11,884.92
  4. Step 4: Simplify right side
    20,832.54x = 341,750,161.50
  5. Step 5: Solve for x
    x = 341,750,161.50/20,832.54
  6. Step 6: Final answer
    x = 16,404.63

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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.