Home / 18,243.42-27,361.49-5,761.32

Finding the Fourth Proportional to 18,243.42, 27,361.49 and 5,761.32

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Solution

The fourth proportional to 18,243.42, 27,361.49 and 5,761.32 is: 8,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.42 : 27,361.49 = 5,761.32 : x
  2. Step 2: Convert to fraction form
    18,243.42/27,361.49 = 5,761.32/x
  3. Step 3: Cross multiply
    18,243.42x = 27,361.49 × 5,761.32
  4. Step 4: Simplify right side
    18,243.42x = 157,638,270.76
  5. Step 5: Solve for x
    x = 157,638,270.76/18,243.42
  6. Step 6: Final answer
    x = 8,640.83

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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.