Home / 20,863.42-31,273.26-9,760.75

Finding the Fourth Proportional to 20,863.42, 31,273.26 and 9,760.75

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Solution

The fourth proportional to 20,863.42, 31,273.26 and 9,760.75 is: 14,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.42 : 31,273.26 = 9,760.75 : x
  2. Step 2: Convert to fraction form
    20,863.42/31,273.26 = 9,760.75/x
  3. Step 3: Cross multiply
    20,863.42x = 31,273.26 × 9,760.75
  4. Step 4: Simplify right side
    20,863.42x = 305,250,472.55
  5. Step 5: Solve for x
    x = 305,250,472.55/20,863.42
  6. Step 6: Final answer
    x = 14,630.89

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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.