Home / 18,771.13-25,910.04-14,530.78

Finding the Fourth Proportional to 18,771.13, 25,910.04 and 14,530.78

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Solution

The fourth proportional to 18,771.13, 25,910.04 and 14,530.78 is: 20,057.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.13 : 25,910.04 = 14,530.78 : x
  2. Step 2: Convert to fraction form
    18,771.13/25,910.04 = 14,530.78/x
  3. Step 3: Cross multiply
    18,771.13x = 25,910.04 × 14,530.78
  4. Step 4: Simplify right side
    18,771.13x = 376,493,091.03
  5. Step 5: Solve for x
    x = 376,493,091.03/18,771.13
  6. Step 6: Final answer
    x = 20,057.03

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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.