Home / 20,198.75-30,298.28-7,051.14

Finding the Fourth Proportional to 20,198.75, 30,298.28 and 7,051.14

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Solution

The fourth proportional to 20,198.75, 30,298.28 and 7,051.14 is: 10,576.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.75 : 30,298.28 = 7,051.14 : x
  2. Step 2: Convert to fraction form
    20,198.75/30,298.28 = 7,051.14/x
  3. Step 3: Cross multiply
    20,198.75x = 30,298.28 × 7,051.14
  4. Step 4: Simplify right side
    20,198.75x = 213,637,414.04
  5. Step 5: Solve for x
    x = 213,637,414.04/20,198.75
  6. Step 6: Final answer
    x = 10,576.76

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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.