Home / 22,286.36-30,757.02-12,729.20

Finding the Fourth Proportional to 22,286.36, 30,757.02 and 12,729.20

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Solution

The fourth proportional to 22,286.36, 30,757.02 and 12,729.20 is: 17,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,286.36 : 30,757.02 = 12,729.20 : x
  2. Step 2: Convert to fraction form
    22,286.36/30,757.02 = 12,729.20/x
  3. Step 3: Cross multiply
    22,286.36x = 30,757.02 × 12,729.20
  4. Step 4: Simplify right side
    22,286.36x = 391,512,258.98
  5. Step 5: Solve for x
    x = 391,512,258.98/22,286.36
  6. Step 6: Final answer
    x = 17,567.35

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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.