Home / 21,884.28-30,200.46-12,453.44

Finding the Fourth Proportional to 21,884.28, 30,200.46 and 12,453.44

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Solution

The fourth proportional to 21,884.28, 30,200.46 and 12,453.44 is: 17,185.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884.28 : 30,200.46 = 12,453.44 : x
  2. Step 2: Convert to fraction form
    21,884.28/30,200.46 = 12,453.44/x
  3. Step 3: Cross multiply
    21,884.28x = 30,200.46 × 12,453.44
  4. Step 4: Simplify right side
    21,884.28x = 376,099,616.58
  5. Step 5: Solve for x
    x = 376,099,616.58/21,884.28
  6. Step 6: Final answer
    x = 17,185.83

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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.