Home / 20,640.18-30,950.97-5,845.59

Finding the Fourth Proportional to 20,640.18, 30,950.97 and 5,845.59

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Solution

The fourth proportional to 20,640.18, 30,950.97 and 5,845.59 is: 8,765.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,640.18 : 30,950.97 = 5,845.59 : x
  2. Step 2: Convert to fraction form
    20,640.18/30,950.97 = 5,845.59/x
  3. Step 3: Cross multiply
    20,640.18x = 30,950.97 × 5,845.59
  4. Step 4: Simplify right side
    20,640.18x = 180,926,680.72
  5. Step 5: Solve for x
    x = 180,926,680.72/20,640.18
  6. Step 6: Final answer
    x = 8,765.75

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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.