Home / 28,845.20-39,805.92-16,269.68

Finding the Fourth Proportional to 28,845.20, 39,805.92 and 16,269.68

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Solution

The fourth proportional to 28,845.20, 39,805.92 and 16,269.68 is: 22,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,845.20 : 39,805.92 = 16,269.68 : x
  2. Step 2: Convert to fraction form
    28,845.20/39,805.92 = 16,269.68/x
  3. Step 3: Cross multiply
    28,845.20x = 39,805.92 × 16,269.68
  4. Step 4: Simplify right side
    28,845.20x = 647,629,580.51
  5. Step 5: Solve for x
    x = 647,629,580.51/28,845.20
  6. Step 6: Final answer
    x = 22,451.90

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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.