Home / 21,260.66-31,879.94-6,265.81

Finding the Fourth Proportional to 21,260.66, 31,879.94 and 6,265.81

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Solution

The fourth proportional to 21,260.66, 31,879.94 and 6,265.81 is: 9,395.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.66 : 31,879.94 = 6,265.81 : x
  2. Step 2: Convert to fraction form
    21,260.66/31,879.94 = 6,265.81/x
  3. Step 3: Cross multiply
    21,260.66x = 31,879.94 × 6,265.81
  4. Step 4: Simplify right side
    21,260.66x = 199,753,646.85
  5. Step 5: Solve for x
    x = 199,753,646.85/21,260.66
  6. Step 6: Final answer
    x = 9,395.46

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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.