Home / 21,313.98-31,932.66-12,544.11

Finding the Fourth Proportional to 21,313.98, 31,932.66 and 12,544.11

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Solution

The fourth proportional to 21,313.98, 31,932.66 and 12,544.11 is: 18,793.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.98 : 31,932.66 = 12,544.11 : x
  2. Step 2: Convert to fraction form
    21,313.98/31,932.66 = 12,544.11/x
  3. Step 3: Cross multiply
    21,313.98x = 31,932.66 × 12,544.11
  4. Step 4: Simplify right side
    21,313.98x = 400,566,799.63
  5. Step 5: Solve for x
    x = 400,566,799.63/21,313.98
  6. Step 6: Final answer
    x = 18,793.62

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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.