Home / 20,895.96-31,336.05-8,411.73

Finding the Fourth Proportional to 20,895.96, 31,336.05 and 8,411.73

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Solution

The fourth proportional to 20,895.96, 31,336.05 and 8,411.73 is: 12,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.96 : 31,336.05 = 8,411.73 : x
  2. Step 2: Convert to fraction form
    20,895.96/31,336.05 = 8,411.73/x
  3. Step 3: Cross multiply
    20,895.96x = 31,336.05 × 8,411.73
  4. Step 4: Simplify right side
    20,895.96x = 263,590,391.87
  5. Step 5: Solve for x
    x = 263,590,391.87/20,895.96
  6. Step 6: Final answer
    x = 12,614.42

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1.5x scale

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.