Home / 20,144.03-30,190.53-11,383.88

Finding the Fourth Proportional to 20,144.03, 30,190.53 and 11,383.88

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Solution

The fourth proportional to 20,144.03, 30,190.53 and 11,383.88 is: 17,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.03 : 30,190.53 = 11,383.88 : x
  2. Step 2: Convert to fraction form
    20,144.03/30,190.53 = 11,383.88/x
  3. Step 3: Cross multiply
    20,144.03x = 30,190.53 × 11,383.88
  4. Step 4: Simplify right side
    20,144.03x = 343,685,370.66
  5. Step 5: Solve for x
    x = 343,685,370.66/20,144.03
  6. Step 6: Final answer
    x = 17,061.40

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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.