Home / 20,946.14-31,424.61-6,155.54

Finding the Fourth Proportional to 20,946.14, 31,424.61 and 6,155.54

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Solution

The fourth proportional to 20,946.14, 31,424.61 and 6,155.54 is: 9,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.14 : 31,424.61 = 6,155.54 : x
  2. Step 2: Convert to fraction form
    20,946.14/31,424.61 = 6,155.54/x
  3. Step 3: Cross multiply
    20,946.14x = 31,424.61 × 6,155.54
  4. Step 4: Simplify right side
    20,946.14x = 193,435,443.84
  5. Step 5: Solve for x
    x = 193,435,443.84/20,946.14
  6. Step 6: Final answer
    x = 9,234.90

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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.