Home / 20,137.26-30,169.67-18,951.27

Finding the Fourth Proportional to 20,137.26, 30,169.67 and 18,951.27

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Solution

The fourth proportional to 20,137.26, 30,169.67 and 18,951.27 is: 28,392.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137.26 : 30,169.67 = 18,951.27 : x
  2. Step 2: Convert to fraction form
    20,137.26/30,169.67 = 18,951.27/x
  3. Step 3: Cross multiply
    20,137.26x = 30,169.67 × 18,951.27
  4. Step 4: Simplify right side
    20,137.26x = 571,753,354.09
  5. Step 5: Solve for x
    x = 571,753,354.09/20,137.26
  6. Step 6: Final answer
    x = 28,392.81

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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.