Home / 28,550.25-39,399.35-15,975

Finding the Fourth Proportional to 28,550.25, 39,399.35 and 15,975

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Solution

The fourth proportional to 28,550.25, 39,399.35 and 15,975 is: 22,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.25 : 39,399.35 = 15,975 : x
  2. Step 2: Convert to fraction form
    28,550.25/39,399.35 = 15,975/x
  3. Step 3: Cross multiply
    28,550.25x = 39,399.35 × 15,975
  4. Step 4: Simplify right side
    28,550.25x = 629,404,536.38
  5. Step 5: Solve for x
    x = 629,404,536.38/28,550.25
  6. Step 6: Final answer
    x = 22,045.50

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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.