Home / 21,234.72-31,852.80-5,653.92

Finding the Fourth Proportional to 21,234.72, 31,852.80 and 5,653.92

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Solution

The fourth proportional to 21,234.72, 31,852.80 and 5,653.92 is: 8,481.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.72 : 31,852.80 = 5,653.92 : x
  2. Step 2: Convert to fraction form
    21,234.72/31,852.80 = 5,653.92/x
  3. Step 3: Cross multiply
    21,234.72x = 31,852.80 × 5,653.92
  4. Step 4: Simplify right side
    21,234.72x = 180,093,182.98
  5. Step 5: Solve for x
    x = 180,093,182.98/21,234.72
  6. Step 6: Final answer
    x = 8,481.07

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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.