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Finding the Fourth Proportional to 36,660.98, 54,991.47 and 13,279.70

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Solution

The fourth proportional to 36,660.98, 54,991.47 and 13,279.70 is: 19,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,660.98 : 54,991.47 = 13,279.70 : x
  2. Step 2: Convert to fraction form
    36,660.98/54,991.47 = 13,279.70/x
  3. Step 3: Cross multiply
    36,660.98x = 54,991.47 × 13,279.70
  4. Step 4: Simplify right side
    36,660.98x = 730,270,224.16
  5. Step 5: Solve for x
    x = 730,270,224.16/36,660.98
  6. Step 6: Final answer
    x = 19,919.55

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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.