Home / 20,760.26-31,137.04-5,965.80

Finding the Fourth Proportional to 20,760.26, 31,137.04 and 5,965.80

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Solution

The fourth proportional to 20,760.26, 31,137.04 and 5,965.80 is: 8,947.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.26 : 31,137.04 = 5,965.80 : x
  2. Step 2: Convert to fraction form
    20,760.26/31,137.04 = 5,965.80/x
  3. Step 3: Cross multiply
    20,760.26x = 31,137.04 × 5,965.80
  4. Step 4: Simplify right side
    20,760.26x = 185,757,353.23
  5. Step 5: Solve for x
    x = 185,757,353.23/20,760.26
  6. Step 6: Final answer
    x = 8,947.74

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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.