Home / 18,272.86-25,218.68-15,201.29

Finding the Fourth Proportional to 18,272.86, 25,218.68 and 15,201.29

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Solution

The fourth proportional to 18,272.86, 25,218.68 and 15,201.29 is: 20,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.86 : 25,218.68 = 15,201.29 : x
  2. Step 2: Convert to fraction form
    18,272.86/25,218.68 = 15,201.29/x
  3. Step 3: Cross multiply
    18,272.86x = 25,218.68 × 15,201.29
  4. Step 4: Simplify right side
    18,272.86x = 383,356,468.10
  5. Step 5: Solve for x
    x = 383,356,468.10/18,272.86
  6. Step 6: Final answer
    x = 20,979.55

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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.