Home / 20,847.62-31,274.67-6,993.38

Finding the Fourth Proportional to 20,847.62, 31,274.67 and 6,993.38

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Solution

The fourth proportional to 20,847.62, 31,274.67 and 6,993.38 is: 10,491.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847.62 : 31,274.67 = 6,993.38 : x
  2. Step 2: Convert to fraction form
    20,847.62/31,274.67 = 6,993.38/x
  3. Step 3: Cross multiply
    20,847.62x = 31,274.67 × 6,993.38
  4. Step 4: Simplify right side
    20,847.62x = 218,715,495.31
  5. Step 5: Solve for x
    x = 218,715,495.31/20,847.62
  6. Step 6: Final answer
    x = 10,491.15

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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.