Home / 13,928.46-20,892.78-3,540.24

Finding the Fourth Proportional to 13,928.46, 20,892.78 and 3,540.24

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Solution

The fourth proportional to 13,928.46, 20,892.78 and 3,540.24 is: 5,310.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.46 : 20,892.78 = 3,540.24 : x
  2. Step 2: Convert to fraction form
    13,928.46/20,892.78 = 3,540.24/x
  3. Step 3: Cross multiply
    13,928.46x = 20,892.78 × 3,540.24
  4. Step 4: Simplify right side
    13,928.46x = 73,965,455.47
  5. Step 5: Solve for x
    x = 73,965,455.47/13,928.46
  6. Step 6: Final answer
    x = 5,310.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.