Home / 20,867.56-31,299.76-6,076.60

Finding the Fourth Proportional to 20,867.56, 31,299.76 and 6,076.60

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Solution

The fourth proportional to 20,867.56, 31,299.76 and 6,076.60 is: 9,114.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.56 : 31,299.76 = 6,076.60 : x
  2. Step 2: Convert to fraction form
    20,867.56/31,299.76 = 6,076.60/x
  3. Step 3: Cross multiply
    20,867.56x = 31,299.76 × 6,076.60
  4. Step 4: Simplify right side
    20,867.56x = 190,196,121.62
  5. Step 5: Solve for x
    x = 190,196,121.62/20,867.56
  6. Step 6: Final answer
    x = 9,114.44

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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.