Home / 20,198.19-30,298.68-6,865.77

Finding the Fourth Proportional to 20,198.19, 30,298.68 and 6,865.77

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Solution

The fourth proportional to 20,198.19, 30,298.68 and 6,865.77 is: 10,299.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.19 : 30,298.68 = 6,865.77 : x
  2. Step 2: Convert to fraction form
    20,198.19/30,298.68 = 6,865.77/x
  3. Step 3: Cross multiply
    20,198.19x = 30,298.68 × 6,865.77
  4. Step 4: Simplify right side
    20,198.19x = 208,023,768.18
  5. Step 5: Solve for x
    x = 208,023,768.18/20,198.19
  6. Step 6: Final answer
    x = 10,299.13

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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.