Home / 36,321.11-50,129.35-21,215.52

Finding the Fourth Proportional to 36,321.11, 50,129.35 and 21,215.52

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Solution

The fourth proportional to 36,321.11, 50,129.35 and 21,215.52 is: 29,281.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,321.11 : 50,129.35 = 21,215.52 : x
  2. Step 2: Convert to fraction form
    36,321.11/50,129.35 = 21,215.52/x
  3. Step 3: Cross multiply
    36,321.11x = 50,129.35 × 21,215.52
  4. Step 4: Simplify right side
    36,321.11x = 1,063,520,174.47
  5. Step 5: Solve for x
    x = 1,063,520,174.47/36,321.11
  6. Step 6: Final answer
    x = 29,281.05

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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.