Home / 28,147.28-38,843.27-15,400.26

Finding the Fourth Proportional to 28,147.28, 38,843.27 and 15,400.26

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Solution

The fourth proportional to 28,147.28, 38,843.27 and 15,400.26 is: 21,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.28 : 38,843.27 = 15,400.26 : x
  2. Step 2: Convert to fraction form
    28,147.28/38,843.27 = 15,400.26/x
  3. Step 3: Cross multiply
    28,147.28x = 38,843.27 × 15,400.26
  4. Step 4: Simplify right side
    28,147.28x = 598,196,380.25
  5. Step 5: Solve for x
    x = 598,196,380.25/28,147.28
  6. Step 6: Final answer
    x = 21,252.37

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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.