Home / 13,858.24-20,787.30-3,469.96

Finding the Fourth Proportional to 13,858.24, 20,787.30 and 3,469.96

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Solution

The fourth proportional to 13,858.24, 20,787.30 and 3,469.96 is: 5,204.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.24 : 20,787.30 = 3,469.96 : x
  2. Step 2: Convert to fraction form
    13,858.24/20,787.30 = 3,469.96/x
  3. Step 3: Cross multiply
    13,858.24x = 20,787.30 × 3,469.96
  4. Step 4: Simplify right side
    13,858.24x = 72,131,099.51
  5. Step 5: Solve for x
    x = 72,131,099.51/13,858.24
  6. Step 6: Final answer
    x = 5,204.92

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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.