Home / 13,815.77-20,723.85-3,427.52

Finding the Fourth Proportional to 13,815.77, 20,723.85 and 3,427.52

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Solution

The fourth proportional to 13,815.77, 20,723.85 and 3,427.52 is: 5,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.77 : 20,723.85 = 3,427.52 : x
  2. Step 2: Convert to fraction form
    13,815.77/20,723.85 = 3,427.52/x
  3. Step 3: Cross multiply
    13,815.77x = 20,723.85 × 3,427.52
  4. Step 4: Simplify right side
    13,815.77x = 71,031,306.73
  5. Step 5: Solve for x
    x = 71,031,306.73/13,815.77
  6. Step 6: Final answer
    x = 5,141.32

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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.