Home / 21,326.11-31,993.27-8,177.46

Finding the Fourth Proportional to 21,326.11, 31,993.27 and 8,177.46

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Solution

The fourth proportional to 21,326.11, 31,993.27 and 8,177.46 is: 12,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.11 : 31,993.27 = 8,177.46 : x
  2. Step 2: Convert to fraction form
    21,326.11/31,993.27 = 8,177.46/x
  3. Step 3: Cross multiply
    21,326.11x = 31,993.27 × 8,177.46
  4. Step 4: Simplify right side
    21,326.11x = 261,623,585.27
  5. Step 5: Solve for x
    x = 261,623,585.27/21,326.11
  6. Step 6: Final answer
    x = 12,267.76

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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.