Home / 20,286.05-30,429.14-6,245.98

Finding the Fourth Proportional to 20,286.05, 30,429.14 and 6,245.98

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Solution

The fourth proportional to 20,286.05, 30,429.14 and 6,245.98 is: 9,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.05 : 30,429.14 = 6,245.98 : x
  2. Step 2: Convert to fraction form
    20,286.05/30,429.14 = 6,245.98/x
  3. Step 3: Cross multiply
    20,286.05x = 30,429.14 × 6,245.98
  4. Step 4: Simplify right side
    20,286.05x = 190,059,692.55
  5. Step 5: Solve for x
    x = 190,059,692.55/20,286.05
  6. Step 6: Final answer
    x = 9,368.99

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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.