Home / 36,021.38-49,704.54-20,911.64

Finding the Fourth Proportional to 36,021.38, 49,704.54 and 20,911.64

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Solution

The fourth proportional to 36,021.38, 49,704.54 and 20,911.64 is: 28,855.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.38 : 49,704.54 = 20,911.64 : x
  2. Step 2: Convert to fraction form
    36,021.38/49,704.54 = 20,911.64/x
  3. Step 3: Cross multiply
    36,021.38x = 49,704.54 × 20,911.64
  4. Step 4: Simplify right side
    36,021.38x = 1,039,403,198.32
  5. Step 5: Solve for x
    x = 1,039,403,198.32/36,021.38
  6. Step 6: Final answer
    x = 28,855.18

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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.