Home / 20,647.21-30,961.36-6,604.51

Finding the Fourth Proportional to 20,647.21, 30,961.36 and 6,604.51

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Solution

The fourth proportional to 20,647.21, 30,961.36 and 6,604.51 is: 9,903.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.21 : 30,961.36 = 6,604.51 : x
  2. Step 2: Convert to fraction form
    20,647.21/30,961.36 = 6,604.51/x
  3. Step 3: Cross multiply
    20,647.21x = 30,961.36 × 6,604.51
  4. Step 4: Simplify right side
    20,647.21x = 204,484,611.73
  5. Step 5: Solve for x
    x = 204,484,611.73/20,647.21
  6. Step 6: Final answer
    x = 9,903.74

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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.