Home / 26,561.54-39,790.46-20,690.66

Finding the Fourth Proportional to 26,561.54, 39,790.46 and 20,690.66

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Solution

The fourth proportional to 26,561.54, 39,790.46 and 20,690.66 is: 30,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,561.54 : 39,790.46 = 20,690.66 : x
  2. Step 2: Convert to fraction form
    26,561.54/39,790.46 = 20,690.66/x
  3. Step 3: Cross multiply
    26,561.54x = 39,790.46 × 20,690.66
  4. Step 4: Simplify right side
    26,561.54x = 823,290,879.10
  5. Step 5: Solve for x
    x = 823,290,879.10/26,561.54
  6. Step 6: Final answer
    x = 30,995.60

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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.