Home / 26,865.75-40,305.46-15,781.81

Finding the Fourth Proportional to 26,865.75, 40,305.46 and 15,781.81

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Solution

The fourth proportional to 26,865.75, 40,305.46 and 15,781.81 is: 23,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,865.75 : 40,305.46 = 15,781.81 : x
  2. Step 2: Convert to fraction form
    26,865.75/40,305.46 = 15,781.81/x
  3. Step 3: Cross multiply
    26,865.75x = 40,305.46 × 15,781.81
  4. Step 4: Simplify right side
    26,865.75x = 636,093,111.68
  5. Step 5: Solve for x
    x = 636,093,111.68/26,865.75
  6. Step 6: Final answer
    x = 23,676.73

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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.