Home / 13,431.54-20,150.97-4,071.87

Finding the Fourth Proportional to 13,431.54, 20,150.97 and 4,071.87

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Solution

The fourth proportional to 13,431.54, 20,150.97 and 4,071.87 is: 6,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.54 : 20,150.97 = 4,071.87 : x
  2. Step 2: Convert to fraction form
    13,431.54/20,150.97 = 4,071.87/x
  3. Step 3: Cross multiply
    13,431.54x = 20,150.97 × 4,071.87
  4. Step 4: Simplify right side
    13,431.54x = 82,052,130.21
  5. Step 5: Solve for x
    x = 82,052,130.21/13,431.54
  6. Step 6: Final answer
    x = 6,108.91

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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.