Home / 13,857.24-20,785.80-3,468.96

Finding the Fourth Proportional to 13,857.24, 20,785.80 and 3,468.96

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Solution

The fourth proportional to 13,857.24, 20,785.80 and 3,468.96 is: 5,203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.24 : 20,785.80 = 3,468.96 : x
  2. Step 2: Convert to fraction form
    13,857.24/20,785.80 = 3,468.96/x
  3. Step 3: Cross multiply
    13,857.24x = 20,785.80 × 3,468.96
  4. Step 4: Simplify right side
    13,857.24x = 72,105,108.77
  5. Step 5: Solve for x
    x = 72,105,108.77/13,857.24
  6. Step 6: Final answer
    x = 5,203.42

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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.