Home / 36,722.09-50,684.64-20,815.31

Finding the Fourth Proportional to 36,722.09, 50,684.64 and 20,815.31

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Solution

The fourth proportional to 36,722.09, 50,684.64 and 20,815.31 is: 28,729.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,722.09 : 50,684.64 = 20,815.31 : x
  2. Step 2: Convert to fraction form
    36,722.09/50,684.64 = 20,815.31/x
  3. Step 3: Cross multiply
    36,722.09x = 50,684.64 × 20,815.31
  4. Step 4: Simplify right side
    36,722.09x = 1,055,016,542.49
  5. Step 5: Solve for x
    x = 1,055,016,542.49/36,722.09
  6. Step 6: Final answer
    x = 28,729.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.