Home / 20,941.35-31,412.96-6,711.27

Finding the Fourth Proportional to 20,941.35, 31,412.96 and 6,711.27

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Solution

The fourth proportional to 20,941.35, 31,412.96 and 6,711.27 is: 10,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.35 : 31,412.96 = 6,711.27 : x
  2. Step 2: Convert to fraction form
    20,941.35/31,412.96 = 6,711.27/x
  3. Step 3: Cross multiply
    20,941.35x = 31,412.96 × 6,711.27
  4. Step 4: Simplify right side
    20,941.35x = 210,820,856.06
  5. Step 5: Solve for x
    x = 210,820,856.06/20,941.35
  6. Step 6: Final answer
    x = 10,067.20

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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.