Home / 36,338.37-50,145.03-20,421.78

Finding the Fourth Proportional to 36,338.37, 50,145.03 and 20,421.78

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Solution

The fourth proportional to 36,338.37, 50,145.03 and 20,421.78 is: 28,180.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,338.37 : 50,145.03 = 20,421.78 : x
  2. Step 2: Convert to fraction form
    36,338.37/50,145.03 = 20,421.78/x
  3. Step 3: Cross multiply
    36,338.37x = 50,145.03 × 20,421.78
  4. Step 4: Simplify right side
    36,338.37x = 1,024,050,770.75
  5. Step 5: Solve for x
    x = 1,024,050,770.75/36,338.37
  6. Step 6: Final answer
    x = 28,180.98

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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.