Home / 33,112.88-45,684.59-18,771.17

Finding the Fourth Proportional to 33,112.88, 45,684.59 and 18,771.17

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Solution

The fourth proportional to 33,112.88, 45,684.59 and 18,771.17 is: 25,897.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,112.88 : 45,684.59 = 18,771.17 : x
  2. Step 2: Convert to fraction form
    33,112.88/45,684.59 = 18,771.17/x
  3. Step 3: Cross multiply
    33,112.88x = 45,684.59 × 18,771.17
  4. Step 4: Simplify right side
    33,112.88x = 857,553,342.95
  5. Step 5: Solve for x
    x = 857,553,342.95/33,112.88
  6. Step 6: Final answer
    x = 25,897.88

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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.