Home / 36,331.45-50,138.67-20,415.58

Finding the Fourth Proportional to 36,331.45, 50,138.67 and 20,415.58

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Solution

The fourth proportional to 36,331.45, 50,138.67 and 20,415.58 is: 28,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,331.45 : 50,138.67 = 20,415.58 : x
  2. Step 2: Convert to fraction form
    36,331.45/50,138.67 = 20,415.58/x
  3. Step 3: Cross multiply
    36,331.45x = 50,138.67 × 20,415.58
  4. Step 4: Simplify right side
    36,331.45x = 1,023,610,028.48
  5. Step 5: Solve for x
    x = 1,023,610,028.48/36,331.45
  6. Step 6: Final answer
    x = 28,174.21

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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.