Home / 36,338.94-50,135.58-20,420.01

Finding the Fourth Proportional to 36,338.94, 50,135.58 and 20,420.01

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Solution

The fourth proportional to 36,338.94, 50,135.58 and 20,420.01 is: 28,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,338.94 : 50,135.58 = 20,420.01 : x
  2. Step 2: Convert to fraction form
    36,338.94/50,135.58 = 20,420.01/x
  3. Step 3: Cross multiply
    36,338.94x = 50,135.58 × 20,420.01
  4. Step 4: Simplify right side
    36,338.94x = 1,023,769,044.96
  5. Step 5: Solve for x
    x = 1,023,769,044.96/36,338.94
  6. Step 6: Final answer
    x = 28,172.78

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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.