Home / 20,989.01-31,476.10-6,193.97

Finding the Fourth Proportional to 20,989.01, 31,476.10 and 6,193.97

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Solution

The fourth proportional to 20,989.01, 31,476.10 and 6,193.97 is: 9,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,989.01 : 31,476.10 = 6,193.97 : x
  2. Step 2: Convert to fraction form
    20,989.01/31,476.10 = 6,193.97/x
  3. Step 3: Cross multiply
    20,989.01x = 31,476.10 × 6,193.97
  4. Step 4: Simplify right side
    20,989.01x = 194,961,846.25
  5. Step 5: Solve for x
    x = 194,961,846.25/20,989.01
  6. Step 6: Final answer
    x = 9,288.76

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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.