Home / 20,777.94-31,166.91-5,195.57

Finding the Fourth Proportional to 20,777.94, 31,166.91 and 5,195.57

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Solution

The fourth proportional to 20,777.94, 31,166.91 and 5,195.57 is: 7,793.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777.94 : 31,166.91 = 5,195.57 : x
  2. Step 2: Convert to fraction form
    20,777.94/31,166.91 = 5,195.57/x
  3. Step 3: Cross multiply
    20,777.94x = 31,166.91 × 5,195.57
  4. Step 4: Simplify right side
    20,777.94x = 161,929,706.75
  5. Step 5: Solve for x
    x = 161,929,706.75/20,777.94
  6. Step 6: Final answer
    x = 7,793.35

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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.