Home / 22,270.35-30,735.68-12,839.25

Finding the Fourth Proportional to 22,270.35, 30,735.68 and 12,839.25

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Solution

The fourth proportional to 22,270.35, 30,735.68 and 12,839.25 is: 17,719.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,270.35 : 30,735.68 = 12,839.25 : x
  2. Step 2: Convert to fraction form
    22,270.35/30,735.68 = 12,839.25/x
  3. Step 3: Cross multiply
    22,270.35x = 30,735.68 × 12,839.25
  4. Step 4: Simplify right side
    22,270.35x = 394,623,015.24
  5. Step 5: Solve for x
    x = 394,623,015.24/22,270.35
  6. Step 6: Final answer
    x = 17,719.66

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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.