Home / 19,920.68-29,844.97-14,343.83

Finding the Fourth Proportional to 19,920.68, 29,844.97 and 14,343.83

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Solution

The fourth proportional to 19,920.68, 29,844.97 and 14,343.83 is: 21,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.68 : 29,844.97 = 14,343.83 : x
  2. Step 2: Convert to fraction form
    19,920.68/29,844.97 = 14,343.83/x
  3. Step 3: Cross multiply
    19,920.68x = 29,844.97 × 14,343.83
  4. Step 4: Simplify right side
    19,920.68x = 428,090,990.95
  5. Step 5: Solve for x
    x = 428,090,990.95/19,920.68
  6. Step 6: Final answer
    x = 21,489.78

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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.