Home / 33,257.21-45,890.91-18,918.86

Finding the Fourth Proportional to 33,257.21, 45,890.91 and 18,918.86

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Solution

The fourth proportional to 33,257.21, 45,890.91 and 18,918.86 is: 26,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,257.21 : 45,890.91 = 18,918.86 : x
  2. Step 2: Convert to fraction form
    33,257.21/45,890.91 = 18,918.86/x
  3. Step 3: Cross multiply
    33,257.21x = 45,890.91 × 18,918.86
  4. Step 4: Simplify right side
    33,257.21x = 868,203,472.11
  5. Step 5: Solve for x
    x = 868,203,472.11/33,257.21
  6. Step 6: Final answer
    x = 26,105.73

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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.