Home / 18,556.16-27,847.94-13,639.05

Finding the Fourth Proportional to 18,556.16, 27,847.94 and 13,639.05

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Solution

The fourth proportional to 18,556.16, 27,847.94 and 13,639.05 is: 20,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.16 : 27,847.94 = 13,639.05 : x
  2. Step 2: Convert to fraction form
    18,556.16/27,847.94 = 13,639.05/x
  3. Step 3: Cross multiply
    18,556.16x = 27,847.94 × 13,639.05
  4. Step 4: Simplify right side
    18,556.16x = 379,819,377.86
  5. Step 5: Solve for x
    x = 379,819,377.86/18,556.16
  6. Step 6: Final answer
    x = 20,468.65

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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.