Home / 20,964.33-31,446.52-5,381.96

Finding the Fourth Proportional to 20,964.33, 31,446.52 and 5,381.96

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Solution

The fourth proportional to 20,964.33, 31,446.52 and 5,381.96 is: 8,072.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964.33 : 31,446.52 = 5,381.96 : x
  2. Step 2: Convert to fraction form
    20,964.33/31,446.52 = 5,381.96/x
  3. Step 3: Cross multiply
    20,964.33x = 31,446.52 × 5,381.96
  4. Step 4: Simplify right side
    20,964.33x = 169,243,742.09
  5. Step 5: Solve for x
    x = 169,243,742.09/20,964.33
  6. Step 6: Final answer
    x = 8,072.94

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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.