Home / 28,449.39-39,268.49-16,518.09

Finding the Fourth Proportional to 28,449.39, 39,268.49 and 16,518.09

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Solution

The fourth proportional to 28,449.39, 39,268.49 and 16,518.09 is: 22,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.39 : 39,268.49 = 16,518.09 : x
  2. Step 2: Convert to fraction form
    28,449.39/39,268.49 = 16,518.09/x
  3. Step 3: Cross multiply
    28,449.39x = 39,268.49 × 16,518.09
  4. Step 4: Simplify right side
    28,449.39x = 648,640,369.39
  5. Step 5: Solve for x
    x = 648,640,369.39/28,449.39
  6. Step 6: Final answer
    x = 22,799.80

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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.