Home / 20,771.04-31,141.92-10,375.44

Finding the Fourth Proportional to 20,771.04, 31,141.92 and 10,375.44

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Solution

The fourth proportional to 20,771.04, 31,141.92 and 10,375.44 is: 15,555.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771.04 : 31,141.92 = 10,375.44 : x
  2. Step 2: Convert to fraction form
    20,771.04/31,141.92 = 10,375.44/x
  3. Step 3: Cross multiply
    20,771.04x = 31,141.92 × 10,375.44
  4. Step 4: Simplify right side
    20,771.04x = 323,111,122.44
  5. Step 5: Solve for x
    x = 323,111,122.44/20,771.04
  6. Step 6: Final answer
    x = 15,555.85

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1.5x scale

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.