Home / 20,851.56-31,273.02-7,694.94

Finding the Fourth Proportional to 20,851.56, 31,273.02 and 7,694.94

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Solution

The fourth proportional to 20,851.56, 31,273.02 and 7,694.94 is: 11,540.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851.56 : 31,273.02 = 7,694.94 : x
  2. Step 2: Convert to fraction form
    20,851.56/31,273.02 = 7,694.94/x
  3. Step 3: Cross multiply
    20,851.56x = 31,273.02 × 7,694.94
  4. Step 4: Simplify right side
    20,851.56x = 240,644,012.52
  5. Step 5: Solve for x
    x = 240,644,012.52/20,851.56
  6. Step 6: Final answer
    x = 11,540.82

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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.