Home / 26,858.12-40,323.86-18,517.55

Finding the Fourth Proportional to 26,858.12, 40,323.86 and 18,517.55

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Solution

The fourth proportional to 26,858.12, 40,323.86 and 18,517.55 is: 27,801.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,858.12 : 40,323.86 = 18,517.55 : x
  2. Step 2: Convert to fraction form
    26,858.12/40,323.86 = 18,517.55/x
  3. Step 3: Cross multiply
    26,858.12x = 40,323.86 × 18,517.55
  4. Step 4: Simplify right side
    26,858.12x = 746,699,001.16
  5. Step 5: Solve for x
    x = 746,699,001.16/26,858.12
  6. Step 6: Final answer
    x = 27,801.61

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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.