Home / 13,830.29-20,745.51-3,442.04

Finding the Fourth Proportional to 13,830.29, 20,745.51 and 3,442.04

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Solution

The fourth proportional to 13,830.29, 20,745.51 and 3,442.04 is: 5,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.29 : 20,745.51 = 3,442.04 : x
  2. Step 2: Convert to fraction form
    13,830.29/20,745.51 = 3,442.04/x
  3. Step 3: Cross multiply
    13,830.29x = 20,745.51 × 3,442.04
  4. Step 4: Simplify right side
    13,830.29x = 71,406,754.30
  5. Step 5: Solve for x
    x = 71,406,754.30/13,830.29
  6. Step 6: Final answer
    x = 5,163.07

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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.