Home / 20,949.92-31,426.64-5,956.96

Finding the Fourth Proportional to 20,949.92, 31,426.64 and 5,956.96

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Solution

The fourth proportional to 20,949.92, 31,426.64 and 5,956.96 is: 8,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.92 : 31,426.64 = 5,956.96 : x
  2. Step 2: Convert to fraction form
    20,949.92/31,426.64 = 5,956.96/x
  3. Step 3: Cross multiply
    20,949.92x = 31,426.64 × 5,956.96
  4. Step 4: Simplify right side
    20,949.92x = 187,207,237.41
  5. Step 5: Solve for x
    x = 187,207,237.41/20,949.92
  6. Step 6: Final answer
    x = 8,935.94

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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.