Home / 18,229.20-27,342.99-5,081.28

Finding the Fourth Proportional to 18,229.20, 27,342.99 and 5,081.28

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Solution

The fourth proportional to 18,229.20, 27,342.99 and 5,081.28 is: 7,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.20 : 27,342.99 = 5,081.28 : x
  2. Step 2: Convert to fraction form
    18,229.20/27,342.99 = 5,081.28/x
  3. Step 3: Cross multiply
    18,229.20x = 27,342.99 × 5,081.28
  4. Step 4: Simplify right side
    18,229.20x = 138,937,388.23
  5. Step 5: Solve for x
    x = 138,937,388.23/18,229.20
  6. Step 6: Final answer
    x = 7,621.69

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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.