Home / 33,180.90-45,799.05-21,858.66

Finding the Fourth Proportional to 33,180.90, 45,799.05 and 21,858.66

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Solution

The fourth proportional to 33,180.90, 45,799.05 and 21,858.66 is: 30,171.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,180.90 : 45,799.05 = 21,858.66 : x
  2. Step 2: Convert to fraction form
    33,180.90/45,799.05 = 21,858.66/x
  3. Step 3: Cross multiply
    33,180.90x = 45,799.05 × 21,858.66
  4. Step 4: Simplify right side
    33,180.90x = 1,001,105,862.27
  5. Step 5: Solve for x
    x = 1,001,105,862.27/33,180.90
  6. Step 6: Final answer
    x = 30,171.15

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1.5x scale

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.