Home / 36,007.80-54,011.70-21,245.55

Finding the Fourth Proportional to 36,007.80, 54,011.70 and 21,245.55

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Solution

The fourth proportional to 36,007.80, 54,011.70 and 21,245.55 is: 31,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,007.80 : 54,011.70 = 21,245.55 : x
  2. Step 2: Convert to fraction form
    36,007.80/54,011.70 = 21,245.55/x
  3. Step 3: Cross multiply
    36,007.80x = 54,011.70 × 21,245.55
  4. Step 4: Simplify right side
    36,007.80x = 1,147,508,272.94
  5. Step 5: Solve for x
    x = 1,147,508,272.94/36,007.80
  6. Step 6: Final answer
    x = 31,868.33

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Similar ratio
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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.