Home / 36,142.21-54,202.90-12,448.79

Finding the Fourth Proportional to 36,142.21, 54,202.90 and 12,448.79

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Solution

The fourth proportional to 36,142.21, 54,202.90 and 12,448.79 is: 18,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,142.21 : 54,202.90 = 12,448.79 : x
  2. Step 2: Convert to fraction form
    36,142.21/54,202.90 = 12,448.79/x
  3. Step 3: Cross multiply
    36,142.21x = 54,202.90 × 12,448.79
  4. Step 4: Simplify right side
    36,142.21x = 674,760,519.49
  5. Step 5: Solve for x
    x = 674,760,519.49/36,142.21
  6. Step 6: Final answer
    x = 18,669.60

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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.