Home / 22,261.08-30,720.36-12,829.64

Finding the Fourth Proportional to 22,261.08, 30,720.36 and 12,829.64

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Solution

The fourth proportional to 22,261.08, 30,720.36 and 12,829.64 is: 17,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.08 : 30,720.36 = 12,829.64 : x
  2. Step 2: Convert to fraction form
    22,261.08/30,720.36 = 12,829.64/x
  3. Step 3: Cross multiply
    22,261.08x = 30,720.36 × 12,829.64
  4. Step 4: Simplify right side
    22,261.08x = 394,131,226.78
  5. Step 5: Solve for x
    x = 394,131,226.78/22,261.08
  6. Step 6: Final answer
    x = 17,704.95

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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.