Home / 21,233.27-31,863.78-8,085.77

Finding the Fourth Proportional to 21,233.27, 31,863.78 and 8,085.77

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Solution

The fourth proportional to 21,233.27, 31,863.78 and 8,085.77 is: 12,133.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.27 : 31,863.78 = 8,085.77 : x
  2. Step 2: Convert to fraction form
    21,233.27/31,863.78 = 8,085.77/x
  3. Step 3: Cross multiply
    21,233.27x = 31,863.78 × 8,085.77
  4. Step 4: Simplify right side
    21,233.27x = 257,643,196.41
  5. Step 5: Solve for x
    x = 257,643,196.41/21,233.27
  6. Step 6: Final answer
    x = 12,133.94

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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.