Home / 20,771.94-31,150.63-5,976.89

Finding the Fourth Proportional to 20,771.94, 31,150.63 and 5,976.89

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Solution

The fourth proportional to 20,771.94, 31,150.63 and 5,976.89 is: 8,963.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771.94 : 31,150.63 = 5,976.89 : x
  2. Step 2: Convert to fraction form
    20,771.94/31,150.63 = 5,976.89/x
  3. Step 3: Cross multiply
    20,771.94x = 31,150.63 × 5,976.89
  4. Step 4: Simplify right side
    20,771.94x = 186,183,823.85
  5. Step 5: Solve for x
    x = 186,183,823.85/20,771.94
  6. Step 6: Final answer
    x = 8,963.24

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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.