Home / 20,922.62-31,385.91-5,930.04

Finding the Fourth Proportional to 20,922.62, 31,385.91 and 5,930.04

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Solution

The fourth proportional to 20,922.62, 31,385.91 and 5,930.04 is: 8,895.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.62 : 31,385.91 = 5,930.04 : x
  2. Step 2: Convert to fraction form
    20,922.62/31,385.91 = 5,930.04/x
  3. Step 3: Cross multiply
    20,922.62x = 31,385.91 × 5,930.04
  4. Step 4: Simplify right side
    20,922.62x = 186,119,841.67
  5. Step 5: Solve for x
    x = 186,119,841.67/20,922.62
  6. Step 6: Final answer
    x = 8,895.63

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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.