Home / 20,961.93-31,446.03-6,923.43

Finding the Fourth Proportional to 20,961.93, 31,446.03 and 6,923.43

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Solution

The fourth proportional to 20,961.93, 31,446.03 and 6,923.43 is: 10,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,961.93 : 31,446.03 = 6,923.43 : x
  2. Step 2: Convert to fraction form
    20,961.93/31,446.03 = 6,923.43/x
  3. Step 3: Cross multiply
    20,961.93x = 31,446.03 × 6,923.43
  4. Step 4: Simplify right side
    20,961.93x = 217,714,387.48
  5. Step 5: Solve for x
    x = 217,714,387.48/20,961.93
  6. Step 6: Final answer
    x = 10,386.18

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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.