Home / 13,811.30-20,717.67-3,952.03

Finding the Fourth Proportional to 13,811.30, 20,717.67 and 3,952.03

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Solution

The fourth proportional to 13,811.30, 20,717.67 and 3,952.03 is: 5,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.30 : 20,717.67 = 3,952.03 : x
  2. Step 2: Convert to fraction form
    13,811.30/20,717.67 = 3,952.03/x
  3. Step 3: Cross multiply
    13,811.30x = 20,717.67 × 3,952.03
  4. Step 4: Simplify right side
    13,811.30x = 81,876,853.37
  5. Step 5: Solve for x
    x = 81,876,853.37/13,811.30
  6. Step 6: Final answer
    x = 5,928.25

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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.