Home / 19,795.92-29,690.70-7,321.86

Finding the Fourth Proportional to 19,795.92, 29,690.70 and 7,321.86

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Solution

The fourth proportional to 19,795.92, 29,690.70 and 7,321.86 is: 10,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,795.92 : 29,690.70 = 7,321.86 : x
  2. Step 2: Convert to fraction form
    19,795.92/29,690.70 = 7,321.86/x
  3. Step 3: Cross multiply
    19,795.92x = 29,690.70 × 7,321.86
  4. Step 4: Simplify right side
    19,795.92x = 217,391,148.70
  5. Step 5: Solve for x
    x = 217,391,148.70/19,795.92
  6. Step 6: Final answer
    x = 10,981.61

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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.