Home / 20,895.05-31,342.24-8,414.77

Finding the Fourth Proportional to 20,895.05, 31,342.24 and 8,414.77

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Solution

The fourth proportional to 20,895.05, 31,342.24 and 8,414.77 is: 12,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.05 : 31,342.24 = 8,414.77 : x
  2. Step 2: Convert to fraction form
    20,895.05/31,342.24 = 8,414.77/x
  3. Step 3: Cross multiply
    20,895.05x = 31,342.24 × 8,414.77
  4. Step 4: Simplify right side
    20,895.05x = 263,737,740.88
  5. Step 5: Solve for x
    x = 263,737,740.88/20,895.05
  6. Step 6: Final answer
    x = 12,622.02

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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.