Home / 18,261.48-27,392.38-5,781.28

Finding the Fourth Proportional to 18,261.48, 27,392.38 and 5,781.28

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Solution

The fourth proportional to 18,261.48, 27,392.38 and 5,781.28 is: 8,671.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.48 : 27,392.38 = 5,781.28 : x
  2. Step 2: Convert to fraction form
    18,261.48/27,392.38 = 5,781.28/x
  3. Step 3: Cross multiply
    18,261.48x = 27,392.38 × 5,781.28
  4. Step 4: Simplify right side
    18,261.48x = 158,363,018.65
  5. Step 5: Solve for x
    x = 158,363,018.65/18,261.48
  6. Step 6: Final answer
    x = 8,671.97

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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.