Home / 28,379.93-39,171.08-16,449.85

Finding the Fourth Proportional to 28,379.93, 39,171.08 and 16,449.85

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Solution

The fourth proportional to 28,379.93, 39,171.08 and 16,449.85 is: 22,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.93 : 39,171.08 = 16,449.85 : x
  2. Step 2: Convert to fraction form
    28,379.93/39,171.08 = 16,449.85/x
  3. Step 3: Cross multiply
    28,379.93x = 39,171.08 × 16,449.85
  4. Step 4: Simplify right side
    28,379.93x = 644,358,112.23
  5. Step 5: Solve for x
    x = 644,358,112.23/28,379.93
  6. Step 6: Final answer
    x = 22,704.71

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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.