Home / 20,250.12-30,383.82-9,859.08

Finding the Fourth Proportional to 20,250.12, 30,383.82 and 9,859.08

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Solution

The fourth proportional to 20,250.12, 30,383.82 and 9,859.08 is: 14,792.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.12 : 30,383.82 = 9,859.08 : x
  2. Step 2: Convert to fraction form
    20,250.12/30,383.82 = 9,859.08/x
  3. Step 3: Cross multiply
    20,250.12x = 30,383.82 × 9,859.08
  4. Step 4: Simplify right side
    20,250.12x = 299,556,512.09
  5. Step 5: Solve for x
    x = 299,556,512.09/20,250.12
  6. Step 6: Final answer
    x = 14,792.83

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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.