Home / 20,944.56-31,416.68-5,149.52

Finding the Fourth Proportional to 20,944.56, 31,416.68 and 5,149.52

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Solution

The fourth proportional to 20,944.56, 31,416.68 and 5,149.52 is: 7,724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.56 : 31,416.68 = 5,149.52 : x
  2. Step 2: Convert to fraction form
    20,944.56/31,416.68 = 5,149.52/x
  3. Step 3: Cross multiply
    20,944.56x = 31,416.68 × 5,149.52
  4. Step 4: Simplify right side
    20,944.56x = 161,780,821.99
  5. Step 5: Solve for x
    x = 161,780,821.99/20,944.56
  6. Step 6: Final answer
    x = 7,724.24

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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.