Home / 28,240.92-38,968.38-18,170.28

Finding the Fourth Proportional to 28,240.92, 38,968.38 and 18,170.28

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Solution

The fourth proportional to 28,240.92, 38,968.38 and 18,170.28 is: 25,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.92 : 38,968.38 = 18,170.28 : x
  2. Step 2: Convert to fraction form
    28,240.92/38,968.38 = 18,170.28/x
  3. Step 3: Cross multiply
    28,240.92x = 38,968.38 × 18,170.28
  4. Step 4: Simplify right side
    28,240.92x = 708,066,375.75
  5. Step 5: Solve for x
    x = 708,066,375.75/28,240.92
  6. Step 6: Final answer
    x = 25,072.36

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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.