Home / 36,217.88-49,980.85-21,121.01

Finding the Fourth Proportional to 36,217.88, 49,980.85 and 21,121.01

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Solution

The fourth proportional to 36,217.88, 49,980.85 and 21,121.01 is: 29,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,217.88 : 49,980.85 = 21,121.01 : x
  2. Step 2: Convert to fraction form
    36,217.88/49,980.85 = 21,121.01/x
  3. Step 3: Cross multiply
    36,217.88x = 49,980.85 × 21,121.01
  4. Step 4: Simplify right side
    36,217.88x = 1,055,645,729.95
  5. Step 5: Solve for x
    x = 1,055,645,729.95/36,217.88
  6. Step 6: Final answer
    x = 29,147.09

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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.