Home / 30,240.88-45,361.38-9,181.09

Finding the Fourth Proportional to 30,240.88, 45,361.38 and 9,181.09

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Solution

The fourth proportional to 30,240.88, 45,361.38 and 9,181.09 is: 13,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240.88 : 45,361.38 = 9,181.09 : x
  2. Step 2: Convert to fraction form
    30,240.88/45,361.38 = 9,181.09/x
  3. Step 3: Cross multiply
    30,240.88x = 45,361.38 × 9,181.09
  4. Step 4: Simplify right side
    30,240.88x = 416,466,912.30
  5. Step 5: Solve for x
    x = 416,466,912.30/30,240.88
  6. Step 6: Final answer
    x = 13,771.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.