Home / 36,311.67-50,111.40-20,395.79

Finding the Fourth Proportional to 36,311.67, 50,111.40 and 20,395.79

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Solution

The fourth proportional to 36,311.67, 50,111.40 and 20,395.79 is: 28,146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,311.67 : 50,111.40 = 20,395.79 : x
  2. Step 2: Convert to fraction form
    36,311.67/50,111.40 = 20,395.79/x
  3. Step 3: Cross multiply
    36,311.67x = 50,111.40 × 20,395.79
  4. Step 4: Simplify right side
    36,311.67x = 1,022,061,340.45
  5. Step 5: Solve for x
    x = 1,022,061,340.45/36,311.67
  6. Step 6: Final answer
    x = 28,146.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.