Home / 28,739.09-39,659.55-16,163.84

Finding the Fourth Proportional to 28,739.09, 39,659.55 and 16,163.84

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Solution

The fourth proportional to 28,739.09, 39,659.55 and 16,163.84 is: 22,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.09 : 39,659.55 = 16,163.84 : x
  2. Step 2: Convert to fraction form
    28,739.09/39,659.55 = 16,163.84/x
  3. Step 3: Cross multiply
    28,739.09x = 39,659.55 × 16,163.84
  4. Step 4: Simplify right side
    28,739.09x = 641,050,620.67
  5. Step 5: Solve for x
    x = 641,050,620.67/28,739.09
  6. Step 6: Final answer
    x = 22,305.88

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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.