Home / 21,034.56-31,556.84-6,243.60

Finding the Fourth Proportional to 21,034.56, 31,556.84 and 6,243.60

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Solution

The fourth proportional to 21,034.56, 31,556.84 and 6,243.60 is: 9,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.56 : 31,556.84 = 6,243.60 : x
  2. Step 2: Convert to fraction form
    21,034.56/31,556.84 = 6,243.60/x
  3. Step 3: Cross multiply
    21,034.56x = 31,556.84 × 6,243.60
  4. Step 4: Simplify right side
    21,034.56x = 197,028,286.22
  5. Step 5: Solve for x
    x = 197,028,286.22/21,034.56
  6. Step 6: Final answer
    x = 9,366.88

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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.