Home / 28,319.44-39,083.96-16,382.64

Finding the Fourth Proportional to 28,319.44, 39,083.96 and 16,382.64

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Solution

The fourth proportional to 28,319.44, 39,083.96 and 16,382.64 is: 22,609.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.44 : 39,083.96 = 16,382.64 : x
  2. Step 2: Convert to fraction form
    28,319.44/39,083.96 = 16,382.64/x
  3. Step 3: Cross multiply
    28,319.44x = 39,083.96 × 16,382.64
  4. Step 4: Simplify right side
    28,319.44x = 640,298,446.45
  5. Step 5: Solve for x
    x = 640,298,446.45/28,319.44
  6. Step 6: Final answer
    x = 22,609.86

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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.