Home / 38,126.28-52,616.19-21,132.42

Finding the Fourth Proportional to 38,126.28, 52,616.19 and 21,132.42

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Solution

The fourth proportional to 38,126.28, 52,616.19 and 21,132.42 is: 29,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,126.28 : 52,616.19 = 21,132.42 : x
  2. Step 2: Convert to fraction form
    38,126.28/52,616.19 = 21,132.42/x
  3. Step 3: Cross multiply
    38,126.28x = 52,616.19 × 21,132.42
  4. Step 4: Simplify right side
    38,126.28x = 1,111,907,425.88
  5. Step 5: Solve for x
    x = 1,111,907,425.88/38,126.28
  6. Step 6: Final answer
    x = 29,163.81

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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.