Home / 20,975.44-31,455.67-6,932.87

Finding the Fourth Proportional to 20,975.44, 31,455.67 and 6,932.87

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Solution

The fourth proportional to 20,975.44, 31,455.67 and 6,932.87 is: 10,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,975.44 : 31,455.67 = 6,932.87 : x
  2. Step 2: Convert to fraction form
    20,975.44/31,455.67 = 6,932.87/x
  3. Step 3: Cross multiply
    20,975.44x = 31,455.67 × 6,932.87
  4. Step 4: Simplify right side
    20,975.44x = 218,078,184.66
  5. Step 5: Solve for x
    x = 218,078,184.66/20,975.44
  6. Step 6: Final answer
    x = 10,396.84

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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.