Home / 20,794.86-31,182.84-13,446.54

Finding the Fourth Proportional to 20,794.86, 31,182.84 and 13,446.54

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Solution

The fourth proportional to 20,794.86, 31,182.84 and 13,446.54 is: 20,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.86 : 31,182.84 = 13,446.54 : x
  2. Step 2: Convert to fraction form
    20,794.86/31,182.84 = 13,446.54/x
  3. Step 3: Cross multiply
    20,794.86x = 31,182.84 × 13,446.54
  4. Step 4: Simplify right side
    20,794.86x = 419,301,305.37
  5. Step 5: Solve for x
    x = 419,301,305.37/20,794.86
  6. Step 6: Final answer
    x = 20,163.70

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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.