Home / 21,065.37-31,597.97-8,582.61

Finding the Fourth Proportional to 21,065.37, 31,597.97 and 8,582.61

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Solution

The fourth proportional to 21,065.37, 31,597.97 and 8,582.61 is: 12,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.37 : 31,597.97 = 8,582.61 : x
  2. Step 2: Convert to fraction form
    21,065.37/31,597.97 = 8,582.61/x
  3. Step 3: Cross multiply
    21,065.37x = 31,597.97 × 8,582.61
  4. Step 4: Simplify right side
    21,065.37x = 271,193,010.39
  5. Step 5: Solve for x
    x = 271,193,010.39/21,065.37
  6. Step 6: Final answer
    x = 12,873.88

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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.