Home / 20,228.27-30,322.82-7,738.68

Finding the Fourth Proportional to 20,228.27, 30,322.82 and 7,738.68

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Solution

The fourth proportional to 20,228.27, 30,322.82 and 7,738.68 is: 11,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.27 : 30,322.82 = 7,738.68 : x
  2. Step 2: Convert to fraction form
    20,228.27/30,322.82 = 7,738.68/x
  3. Step 3: Cross multiply
    20,228.27x = 30,322.82 × 7,738.68
  4. Step 4: Simplify right side
    20,228.27x = 234,658,561.98
  5. Step 5: Solve for x
    x = 234,658,561.98/20,228.27
  6. Step 6: Final answer
    x = 11,600.52

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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.