Home / 27,918.20-41,820.60-17,355.80

Finding the Fourth Proportional to 27,918.20, 41,820.60 and 17,355.80

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Solution

The fourth proportional to 27,918.20, 41,820.60 and 17,355.80 is: 25,998.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.20 : 41,820.60 = 17,355.80 : x
  2. Step 2: Convert to fraction form
    27,918.20/41,820.60 = 17,355.80/x
  3. Step 3: Cross multiply
    27,918.20x = 41,820.60 × 17,355.80
  4. Step 4: Simplify right side
    27,918.20x = 725,829,969.48
  5. Step 5: Solve for x
    x = 725,829,969.48/27,918.20
  6. Step 6: Final answer
    x = 25,998.45

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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.