Home / 13,631.94-20,447.33-4,271.75

Finding the Fourth Proportional to 13,631.94, 20,447.33 and 4,271.75

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Solution

The fourth proportional to 13,631.94, 20,447.33 and 4,271.75 is: 6,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.94 : 20,447.33 = 4,271.75 : x
  2. Step 2: Convert to fraction form
    13,631.94/20,447.33 = 4,271.75/x
  3. Step 3: Cross multiply
    13,631.94x = 20,447.33 × 4,271.75
  4. Step 4: Simplify right side
    13,631.94x = 87,345,884.79
  5. Step 5: Solve for x
    x = 87,345,884.79/13,631.94
  6. Step 6: Final answer
    x = 6,407.44

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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.