Home / 18,398.17-27,721.24-15,183.28

Finding the Fourth Proportional to 18,398.17, 27,721.24 and 15,183.28

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Solution

The fourth proportional to 18,398.17, 27,721.24 and 15,183.28 is: 22,877.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.17 : 27,721.24 = 15,183.28 : x
  2. Step 2: Convert to fraction form
    18,398.17/27,721.24 = 15,183.28/x
  3. Step 3: Cross multiply
    18,398.17x = 27,721.24 × 15,183.28
  4. Step 4: Simplify right side
    18,398.17x = 420,899,348.87
  5. Step 5: Solve for x
    x = 420,899,348.87/18,398.17
  6. Step 6: Final answer
    x = 22,877.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.