Home / 36,729.35-50,686.76-20,813.86

Finding the Fourth Proportional to 36,729.35, 50,686.76 and 20,813.86

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Solution

The fourth proportional to 36,729.35, 50,686.76 and 20,813.86 is: 28,723.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,729.35 : 50,686.76 = 20,813.86 : x
  2. Step 2: Convert to fraction form
    36,729.35/50,686.76 = 20,813.86/x
  3. Step 3: Cross multiply
    36,729.35x = 50,686.76 × 20,813.86
  4. Step 4: Simplify right side
    36,729.35x = 1,054,987,241.89
  5. Step 5: Solve for x
    x = 1,054,987,241.89/36,729.35
  6. Step 6: Final answer
    x = 28,723.28

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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.