Home / 20,958.93-31,441.52-6,920.44

Finding the Fourth Proportional to 20,958.93, 31,441.52 and 6,920.44

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Solution

The fourth proportional to 20,958.93, 31,441.52 and 6,920.44 is: 10,381.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958.93 : 31,441.52 = 6,920.44 : x
  2. Step 2: Convert to fraction form
    20,958.93/31,441.52 = 6,920.44/x
  3. Step 3: Cross multiply
    20,958.93x = 31,441.52 × 6,920.44
  4. Step 4: Simplify right side
    20,958.93x = 217,589,052.44
  5. Step 5: Solve for x
    x = 217,589,052.44/20,958.93
  6. Step 6: Final answer
    x = 10,381.69

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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.