Home / 21,260.06-31,879.62-7,932.52

Finding the Fourth Proportional to 21,260.06, 31,879.62 and 7,932.52

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Solution

The fourth proportional to 21,260.06, 31,879.62 and 7,932.52 is: 11,894.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.06 : 31,879.62 = 7,932.52 : x
  2. Step 2: Convert to fraction form
    21,260.06/31,879.62 = 7,932.52/x
  3. Step 3: Cross multiply
    21,260.06x = 31,879.62 × 7,932.52
  4. Step 4: Simplify right side
    21,260.06x = 252,885,723.24
  5. Step 5: Solve for x
    x = 252,885,723.24/21,260.06
  6. Step 6: Final answer
    x = 11,894.87

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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.