Home / 20,998.91-31,498.68-5,204

Finding the Fourth Proportional to 20,998.91, 31,498.68 and 5,204

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Solution

The fourth proportional to 20,998.91, 31,498.68 and 5,204 is: 7,806.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998.91 : 31,498.68 = 5,204 : x
  2. Step 2: Convert to fraction form
    20,998.91/31,498.68 = 5,204/x
  3. Step 3: Cross multiply
    20,998.91x = 31,498.68 × 5,204
  4. Step 4: Simplify right side
    20,998.91x = 163,919,130.72
  5. Step 5: Solve for x
    x = 163,919,130.72/20,998.91
  6. Step 6: Final answer
    x = 7,806.08

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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.