Home / 13,830.23-20,745.31-3,441.98

Finding the Fourth Proportional to 13,830.23, 20,745.31 and 3,441.98

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Solution

The fourth proportional to 13,830.23, 20,745.31 and 3,441.98 is: 5,162.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.23 : 20,745.31 = 3,441.98 : x
  2. Step 2: Convert to fraction form
    13,830.23/20,745.31 = 3,441.98/x
  3. Step 3: Cross multiply
    13,830.23x = 20,745.31 × 3,441.98
  4. Step 4: Simplify right side
    13,830.23x = 71,404,942.11
  5. Step 5: Solve for x
    x = 71,404,942.11/13,830.23
  6. Step 6: Final answer
    x = 5,162.96

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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.