Home / 20,949.05-31,423.58-6,157.97

Finding the Fourth Proportional to 20,949.05, 31,423.58 and 6,157.97

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Solution

The fourth proportional to 20,949.05, 31,423.58 and 6,157.97 is: 9,236.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.05 : 31,423.58 = 6,157.97 : x
  2. Step 2: Convert to fraction form
    20,949.05/31,423.58 = 6,157.97/x
  3. Step 3: Cross multiply
    20,949.05x = 31,423.58 × 6,157.97
  4. Step 4: Simplify right side
    20,949.05x = 193,505,462.93
  5. Step 5: Solve for x
    x = 193,505,462.93/20,949.05
  6. Step 6: Final answer
    x = 9,236.96

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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.