Home / 26,761.20-36,918.60-18,808.62

Finding the Fourth Proportional to 26,761.20, 36,918.60 and 18,808.62

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Solution

The fourth proportional to 26,761.20, 36,918.60 and 18,808.62 is: 25,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,761.20 : 36,918.60 = 18,808.62 : x
  2. Step 2: Convert to fraction form
    26,761.20/36,918.60 = 18,808.62/x
  3. Step 3: Cross multiply
    26,761.20x = 36,918.60 × 18,808.62
  4. Step 4: Simplify right side
    26,761.20x = 694,387,918.33
  5. Step 5: Solve for x
    x = 694,387,918.33/26,761.20
  6. Step 6: Final answer
    x = 25,947.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.