Home / 18,821.91-28,232.22-6,341.70

Finding the Fourth Proportional to 18,821.91, 28,232.22 and 6,341.70

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Solution

The fourth proportional to 18,821.91, 28,232.22 and 6,341.70 is: 9,512.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.91 : 28,232.22 = 6,341.70 : x
  2. Step 2: Convert to fraction form
    18,821.91/28,232.22 = 6,341.70/x
  3. Step 3: Cross multiply
    18,821.91x = 28,232.22 × 6,341.70
  4. Step 4: Simplify right side
    18,821.91x = 179,040,269.57
  5. Step 5: Solve for x
    x = 179,040,269.57/18,821.91
  6. Step 6: Final answer
    x = 9,512.33

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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.