Home / 13,629.29-20,443.93-4,269.38

Finding the Fourth Proportional to 13,629.29, 20,443.93 and 4,269.38

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Solution

The fourth proportional to 13,629.29, 20,443.93 and 4,269.38 is: 6,404.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.29 : 20,443.93 = 4,269.38 : x
  2. Step 2: Convert to fraction form
    13,629.29/20,443.93 = 4,269.38/x
  3. Step 3: Cross multiply
    13,629.29x = 20,443.93 × 4,269.38
  4. Step 4: Simplify right side
    13,629.29x = 87,282,884.52
  5. Step 5: Solve for x
    x = 87,282,884.52/13,629.29
  6. Step 6: Final answer
    x = 6,404.07

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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.