Home / 33,221.90-45,834.72-21,291.82

Finding the Fourth Proportional to 33,221.90, 45,834.72 and 21,291.82

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Solution

The fourth proportional to 33,221.90, 45,834.72 and 21,291.82 is: 29,375.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,221.90 : 45,834.72 = 21,291.82 : x
  2. Step 2: Convert to fraction form
    33,221.90/45,834.72 = 21,291.82/x
  3. Step 3: Cross multiply
    33,221.90x = 45,834.72 × 21,291.82
  4. Step 4: Simplify right side
    33,221.90x = 975,904,607.99
  5. Step 5: Solve for x
    x = 975,904,607.99/33,221.90
  6. Step 6: Final answer
    x = 29,375.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.