Home / 36,221.21-49,986.56-21,111.44

Finding the Fourth Proportional to 36,221.21, 49,986.56 and 21,111.44

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Solution

The fourth proportional to 36,221.21, 49,986.56 and 21,111.44 is: 29,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,221.21 : 49,986.56 = 21,111.44 : x
  2. Step 2: Convert to fraction form
    36,221.21/49,986.56 = 21,111.44/x
  3. Step 3: Cross multiply
    36,221.21x = 49,986.56 × 21,111.44
  4. Step 4: Simplify right side
    36,221.21x = 1,055,288,065.09
  5. Step 5: Solve for x
    x = 1,055,288,065.09/36,221.21
  6. Step 6: Final answer
    x = 29,134.54

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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.