Home / 20,985.44-31,481.24-6,192.44

Finding the Fourth Proportional to 20,985.44, 31,481.24 and 6,192.44

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Solution

The fourth proportional to 20,985.44, 31,481.24 and 6,192.44 is: 9,289.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,985.44 : 31,481.24 = 6,192.44 : x
  2. Step 2: Convert to fraction form
    20,985.44/31,481.24 = 6,192.44/x
  3. Step 3: Cross multiply
    20,985.44x = 31,481.24 × 6,192.44
  4. Step 4: Simplify right side
    20,985.44x = 194,945,501.46
  5. Step 5: Solve for x
    x = 194,945,501.46/20,985.44
  6. Step 6: Final answer
    x = 9,289.56

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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.