Home / 20,676.02-30,995.82-8,204.81

Finding the Fourth Proportional to 20,676.02, 30,995.82 and 8,204.81

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Solution

The fourth proportional to 20,676.02, 30,995.82 and 8,204.81 is: 12,299.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.02 : 30,995.82 = 8,204.81 : x
  2. Step 2: Convert to fraction form
    20,676.02/30,995.82 = 8,204.81/x
  3. Step 3: Cross multiply
    20,676.02x = 30,995.82 × 8,204.81
  4. Step 4: Simplify right side
    20,676.02x = 254,314,658.92
  5. Step 5: Solve for x
    x = 254,314,658.92/20,676.02
  6. Step 6: Final answer
    x = 12,299.98

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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.