Home / 18,550.32-27,794.88-13,621.92

Finding the Fourth Proportional to 18,550.32, 27,794.88 and 13,621.92

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Solution

The fourth proportional to 18,550.32, 27,794.88 and 13,621.92 is: 20,410.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.32 : 27,794.88 = 13,621.92 : x
  2. Step 2: Convert to fraction form
    18,550.32/27,794.88 = 13,621.92/x
  3. Step 3: Cross multiply
    18,550.32x = 27,794.88 × 13,621.92
  4. Step 4: Simplify right side
    18,550.32x = 378,619,631.77
  5. Step 5: Solve for x
    x = 378,619,631.77/18,550.32
  6. Step 6: Final answer
    x = 20,410.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.