Home / 26,879.51-40,314.74-8,155.07

Finding the Fourth Proportional to 26,879.51, 40,314.74 and 8,155.07

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Solution

The fourth proportional to 26,879.51, 40,314.74 and 8,155.07 is: 12,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,879.51 : 40,314.74 = 8,155.07 : x
  2. Step 2: Convert to fraction form
    26,879.51/40,314.74 = 8,155.07/x
  3. Step 3: Cross multiply
    26,879.51x = 40,314.74 × 8,155.07
  4. Step 4: Simplify right side
    26,879.51x = 328,769,284.38
  5. Step 5: Solve for x
    x = 328,769,284.38/26,879.51
  6. Step 6: Final answer
    x = 12,231.23

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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.