Home / 18,489.43-27,735.54-5,341.90

Finding the Fourth Proportional to 18,489.43, 27,735.54 and 5,341.90

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Solution

The fourth proportional to 18,489.43, 27,735.54 and 5,341.90 is: 8,013.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.43 : 27,735.54 = 5,341.90 : x
  2. Step 2: Convert to fraction form
    18,489.43/27,735.54 = 5,341.90/x
  3. Step 3: Cross multiply
    18,489.43x = 27,735.54 × 5,341.90
  4. Step 4: Simplify right side
    18,489.43x = 148,160,481.13
  5. Step 5: Solve for x
    x = 148,160,481.13/18,489.43
  6. Step 6: Final answer
    x = 8,013.25

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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.