Home / 28,550.38-39,400.59-15,975.22

Finding the Fourth Proportional to 28,550.38, 39,400.59 and 15,975.22

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Solution

The fourth proportional to 28,550.38, 39,400.59 and 15,975.22 is: 22,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.38 : 39,400.59 = 15,975.22 : x
  2. Step 2: Convert to fraction form
    28,550.38/39,400.59 = 15,975.22/x
  3. Step 3: Cross multiply
    28,550.38x = 39,400.59 × 15,975.22
  4. Step 4: Simplify right side
    28,550.38x = 629,433,093.38
  5. Step 5: Solve for x
    x = 629,433,093.38/28,550.38
  6. Step 6: Final answer
    x = 22,046.40

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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.