Home / 28,146.75-38,843.24-16,969.47

Finding the Fourth Proportional to 28,146.75, 38,843.24 and 16,969.47

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Solution

The fourth proportional to 28,146.75, 38,843.24 and 16,969.47 is: 23,418.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.75 : 38,843.24 = 16,969.47 : x
  2. Step 2: Convert to fraction form
    28,146.75/38,843.24 = 16,969.47/x
  3. Step 3: Cross multiply
    28,146.75x = 38,843.24 × 16,969.47
  4. Step 4: Simplify right side
    28,146.75x = 659,149,238.31
  5. Step 5: Solve for x
    x = 659,149,238.31/28,146.75
  6. Step 6: Final answer
    x = 23,418.31

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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.