Home / 36,679.20-55,021.74-11,722.80

Finding the Fourth Proportional to 36,679.20, 55,021.74 and 11,722.80

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Solution

The fourth proportional to 36,679.20, 55,021.74 and 11,722.80 is: 17,585.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,679.20 : 55,021.74 = 11,722.80 : x
  2. Step 2: Convert to fraction form
    36,679.20/55,021.74 = 11,722.80/x
  3. Step 3: Cross multiply
    36,679.20x = 55,021.74 × 11,722.80
  4. Step 4: Simplify right side
    36,679.20x = 645,008,853.67
  5. Step 5: Solve for x
    x = 645,008,853.67/36,679.20
  6. Step 6: Final answer
    x = 17,585.14

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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.