Home / 33,989.12-51,006.72-13,209.92

Finding the Fourth Proportional to 33,989.12, 51,006.72 and 13,209.92

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Solution

The fourth proportional to 33,989.12, 51,006.72 and 13,209.92 is: 19,823.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,989.12 : 51,006.72 = 13,209.92 : x
  2. Step 2: Convert to fraction form
    33,989.12/51,006.72 = 13,209.92/x
  3. Step 3: Cross multiply
    33,989.12x = 51,006.72 × 13,209.92
  4. Step 4: Simplify right side
    33,989.12x = 673,794,690.66
  5. Step 5: Solve for x
    x = 673,794,690.66/33,989.12
  6. Step 6: Final answer
    x = 19,823.83

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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.