Home / 36,314.91-50,109.12-20,396.31

Finding the Fourth Proportional to 36,314.91, 50,109.12 and 20,396.31

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Solution

The fourth proportional to 36,314.91, 50,109.12 and 20,396.31 is: 28,143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,314.91 : 50,109.12 = 20,396.31 : x
  2. Step 2: Convert to fraction form
    36,314.91/50,109.12 = 20,396.31/x
  3. Step 3: Cross multiply
    36,314.91x = 50,109.12 × 20,396.31
  4. Step 4: Simplify right side
    36,314.91x = 1,022,041,145.35
  5. Step 5: Solve for x
    x = 1,022,041,145.35/36,314.91
  6. Step 6: Final answer
    x = 28,143.84

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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.