Home / 26,879.90-40,340.72-18,617.81

Finding the Fourth Proportional to 26,879.90, 40,340.72 and 18,617.81

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Solution

The fourth proportional to 26,879.90, 40,340.72 and 18,617.81 is: 27,941.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,879.90 : 40,340.72 = 18,617.81 : x
  2. Step 2: Convert to fraction form
    26,879.90/40,340.72 = 18,617.81/x
  3. Step 3: Cross multiply
    26,879.90x = 40,340.72 × 18,617.81
  4. Step 4: Simplify right side
    26,879.90x = 751,055,565.43
  5. Step 5: Solve for x
    x = 751,055,565.43/26,879.90
  6. Step 6: Final answer
    x = 27,941.16

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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.