Home / 33,133.33-45,725.21-18,988.89

Finding the Fourth Proportional to 33,133.33, 45,725.21 and 18,988.89

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Solution

The fourth proportional to 33,133.33, 45,725.21 and 18,988.89 is: 26,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,133.33 : 45,725.21 = 18,988.89 : x
  2. Step 2: Convert to fraction form
    33,133.33/45,725.21 = 18,988.89/x
  3. Step 3: Cross multiply
    33,133.33x = 45,725.21 × 18,988.89
  4. Step 4: Simplify right side
    33,133.33x = 868,270,982.92
  5. Step 5: Solve for x
    x = 868,270,982.92/33,133.33
  6. Step 6: Final answer
    x = 26,205.36

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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.