Home / 13,622.08-20,429.88-3,761.14

Finding the Fourth Proportional to 13,622.08, 20,429.88 and 3,761.14

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Solution

The fourth proportional to 13,622.08, 20,429.88 and 3,761.14 is: 5,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.08 : 20,429.88 = 3,761.14 : x
  2. Step 2: Convert to fraction form
    13,622.08/20,429.88 = 3,761.14/x
  3. Step 3: Cross multiply
    13,622.08x = 20,429.88 × 3,761.14
  4. Step 4: Simplify right side
    13,622.08x = 76,839,638.86
  5. Step 5: Solve for x
    x = 76,839,638.86/13,622.08
  6. Step 6: Final answer
    x = 5,640.82

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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.