Home / 33,036.80-45,571.71-21,086.66

Finding the Fourth Proportional to 33,036.80, 45,571.71 and 21,086.66

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Solution

The fourth proportional to 33,036.80, 45,571.71 and 21,086.66 is: 29,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,036.80 : 45,571.71 = 21,086.66 : x
  2. Step 2: Convert to fraction form
    33,036.80/45,571.71 = 21,086.66/x
  3. Step 3: Cross multiply
    33,036.80x = 45,571.71 × 21,086.66
  4. Step 4: Simplify right side
    33,036.80x = 960,955,347.39
  5. Step 5: Solve for x
    x = 960,955,347.39/33,036.80
  6. Step 6: Final answer
    x = 29,087.43

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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.