Home / 26,840.80-40,268.49-8,120.08

Finding the Fourth Proportional to 26,840.80, 40,268.49 and 8,120.08

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Solution

The fourth proportional to 26,840.80, 40,268.49 and 8,120.08 is: 12,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,840.80 : 40,268.49 = 8,120.08 : x
  2. Step 2: Convert to fraction form
    26,840.80/40,268.49 = 8,120.08/x
  3. Step 3: Cross multiply
    26,840.80x = 40,268.49 × 8,120.08
  4. Step 4: Simplify right side
    26,840.80x = 326,983,360.28
  5. Step 5: Solve for x
    x = 326,983,360.28/26,840.80
  6. Step 6: Final answer
    x = 12,182.33

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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.