Home / 36,021.05-49,709.07-20,105.49

Finding the Fourth Proportional to 36,021.05, 49,709.07 and 20,105.49

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Solution

The fourth proportional to 36,021.05, 49,709.07 and 20,105.49 is: 27,745.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.05 : 49,709.07 = 20,105.49 : x
  2. Step 2: Convert to fraction form
    36,021.05/49,709.07 = 20,105.49/x
  3. Step 3: Cross multiply
    36,021.05x = 49,709.07 × 20,105.49
  4. Step 4: Simplify right side
    36,021.05x = 999,425,209.79
  5. Step 5: Solve for x
    x = 999,425,209.79/36,021.05
  6. Step 6: Final answer
    x = 27,745.59

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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.