Home / 22,190.38-30,621.95-13,233.25

Finding the Fourth Proportional to 22,190.38, 30,621.95 and 13,233.25

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Solution

The fourth proportional to 22,190.38, 30,621.95 and 13,233.25 is: 18,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.38 : 30,621.95 = 13,233.25 : x
  2. Step 2: Convert to fraction form
    22,190.38/30,621.95 = 13,233.25/x
  3. Step 3: Cross multiply
    22,190.38x = 30,621.95 × 13,233.25
  4. Step 4: Simplify right side
    22,190.38x = 405,227,855.45
  5. Step 5: Solve for x
    x = 405,227,855.45/22,190.38
  6. Step 6: Final answer
    x = 18,261.42

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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.