Home / 22,270.88-30,739.36-12,845.12

Finding the Fourth Proportional to 22,270.88, 30,739.36 and 12,845.12

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Solution

The fourth proportional to 22,270.88, 30,739.36 and 12,845.12 is: 17,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,270.88 : 30,739.36 = 12,845.12 : x
  2. Step 2: Convert to fraction form
    22,270.88/30,739.36 = 12,845.12/x
  3. Step 3: Cross multiply
    22,270.88x = 30,739.36 × 12,845.12
  4. Step 4: Simplify right side
    22,270.88x = 394,850,767.92
  5. Step 5: Solve for x
    x = 394,850,767.92/22,270.88
  6. Step 6: Final answer
    x = 17,729.46

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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.