Home / 21,310.24-31,951.52-8,826.88

Finding the Fourth Proportional to 21,310.24, 31,951.52 and 8,826.88

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Solution

The fourth proportional to 21,310.24, 31,951.52 and 8,826.88 is: 13,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,310.24 : 31,951.52 = 8,826.88 : x
  2. Step 2: Convert to fraction form
    21,310.24/31,951.52 = 8,826.88/x
  3. Step 3: Cross multiply
    21,310.24x = 31,951.52 × 8,826.88
  4. Step 4: Simplify right side
    21,310.24x = 282,032,232.86
  5. Step 5: Solve for x
    x = 282,032,232.86/21,310.24
  6. Step 6: Final answer
    x = 13,234.59

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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.