Home / 13,629.20-20,443.79-3,633.95

Finding the Fourth Proportional to 13,629.20, 20,443.79 and 3,633.95

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Solution

The fourth proportional to 13,629.20, 20,443.79 and 3,633.95 is: 5,450.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.20 : 20,443.79 = 3,633.95 : x
  2. Step 2: Convert to fraction form
    13,629.20/20,443.79 = 3,633.95/x
  3. Step 3: Cross multiply
    13,629.20x = 20,443.79 × 3,633.95
  4. Step 4: Simplify right side
    13,629.20x = 74,291,590.28
  5. Step 5: Solve for x
    x = 74,291,590.28/13,629.20
  6. Step 6: Final answer
    x = 5,450.92

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1.5x scale

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.