Home / 20,235.28-30,357.43-6,197.28

Finding the Fourth Proportional to 20,235.28, 30,357.43 and 6,197.28

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Solution

The fourth proportional to 20,235.28, 30,357.43 and 6,197.28 is: 9,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.28 : 30,357.43 = 6,197.28 : x
  2. Step 2: Convert to fraction form
    20,235.28/30,357.43 = 6,197.28/x
  3. Step 3: Cross multiply
    20,235.28x = 30,357.43 × 6,197.28
  4. Step 4: Simplify right side
    20,235.28x = 188,133,493.79
  5. Step 5: Solve for x
    x = 188,133,493.79/20,235.28
  6. Step 6: Final answer
    x = 9,297.30

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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.