Home / 36,764.20-55,146.30-21,989.80

Finding the Fourth Proportional to 36,764.20, 55,146.30 and 21,989.80

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Solution

The fourth proportional to 36,764.20, 55,146.30 and 21,989.80 is: 32,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,764.20 : 55,146.30 = 21,989.80 : x
  2. Step 2: Convert to fraction form
    36,764.20/55,146.30 = 21,989.80/x
  3. Step 3: Cross multiply
    36,764.20x = 55,146.30 × 21,989.80
  4. Step 4: Simplify right side
    36,764.20x = 1,212,656,107.74
  5. Step 5: Solve for x
    x = 1,212,656,107.74/36,764.20
  6. Step 6: Final answer
    x = 32,984.70

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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.