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Finding the Fourth Proportional to 33,239.70, 49,859.55 and 19,415.70

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Solution

The fourth proportional to 33,239.70, 49,859.55 and 19,415.70 is: 29,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,239.70 : 49,859.55 = 19,415.70 : x
  2. Step 2: Convert to fraction form
    33,239.70/49,859.55 = 19,415.70/x
  3. Step 3: Cross multiply
    33,239.70x = 49,859.55 × 19,415.70
  4. Step 4: Simplify right side
    33,239.70x = 968,058,064.94
  5. Step 5: Solve for x
    x = 968,058,064.94/33,239.70
  6. Step 6: Final answer
    x = 29,123.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.