Home / 18,550.47-27,825.71-5,403.87

Finding the Fourth Proportional to 18,550.47, 27,825.71 and 5,403.87

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Solution

The fourth proportional to 18,550.47, 27,825.71 and 5,403.87 is: 8,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.47 : 27,825.71 = 5,403.87 : x
  2. Step 2: Convert to fraction form
    18,550.47/27,825.71 = 5,403.87/x
  3. Step 3: Cross multiply
    18,550.47x = 27,825.71 × 5,403.87
  4. Step 4: Simplify right side
    18,550.47x = 150,366,492.48
  5. Step 5: Solve for x
    x = 150,366,492.48/18,550.47
  6. Step 6: Final answer
    x = 8,105.81

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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.