Home / 20,233.24-27,911.94-13,520.51

Finding the Fourth Proportional to 20,233.24, 27,911.94 and 13,520.51

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Solution

The fourth proportional to 20,233.24, 27,911.94 and 13,520.51 is: 18,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.24 : 27,911.94 = 13,520.51 : x
  2. Step 2: Convert to fraction form
    20,233.24/27,911.94 = 13,520.51/x
  3. Step 3: Cross multiply
    20,233.24x = 27,911.94 × 13,520.51
  4. Step 4: Simplify right side
    20,233.24x = 377,383,663.89
  5. Step 5: Solve for x
    x = 377,383,663.89/20,233.24
  6. Step 6: Final answer
    x = 18,651.67

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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.