Home / 20,851.03-31,198.07-14,623.20

Finding the Fourth Proportional to 20,851.03, 31,198.07 and 14,623.20

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Solution

The fourth proportional to 20,851.03, 31,198.07 and 14,623.20 is: 21,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,851.03 : 31,198.07 = 14,623.20 : x
  2. Step 2: Convert to fraction form
    20,851.03/31,198.07 = 14,623.20/x
  3. Step 3: Cross multiply
    20,851.03x = 31,198.07 × 14,623.20
  4. Step 4: Simplify right side
    20,851.03x = 456,215,653.78
  5. Step 5: Solve for x
    x = 456,215,653.78/20,851.03
  6. Step 6: Final answer
    x = 21,879.76

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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.