Home / 13,928.44-20,892.34-3,540.20

Finding the Fourth Proportional to 13,928.44, 20,892.34 and 3,540.20

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Solution

The fourth proportional to 13,928.44, 20,892.34 and 3,540.20 is: 5,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.44 : 20,892.34 = 3,540.20 : x
  2. Step 2: Convert to fraction form
    13,928.44/20,892.34 = 3,540.20/x
  3. Step 3: Cross multiply
    13,928.44x = 20,892.34 × 3,540.20
  4. Step 4: Simplify right side
    13,928.44x = 73,963,062.07
  5. Step 5: Solve for x
    x = 73,963,062.07/13,928.44
  6. Step 6: Final answer
    x = 5,310.22

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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.