Home / 13,957.20-20,935.44-3,427.32

Finding the Fourth Proportional to 13,957.20, 20,935.44 and 3,427.32

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Solution

The fourth proportional to 13,957.20, 20,935.44 and 3,427.32 is: 5,140.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.20 : 20,935.44 = 3,427.32 : x
  2. Step 2: Convert to fraction form
    13,957.20/20,935.44 = 3,427.32/x
  3. Step 3: Cross multiply
    13,957.20x = 20,935.44 × 3,427.32
  4. Step 4: Simplify right side
    13,957.20x = 71,752,452.22
  5. Step 5: Solve for x
    x = 71,752,452.22/13,957.20
  6. Step 6: Final answer
    x = 5,140.89

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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.