Home / 20,110.67-27,755.26-13,217.66

Finding the Fourth Proportional to 20,110.67, 27,755.26 and 13,217.66

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Solution

The fourth proportional to 20,110.67, 27,755.26 and 13,217.66 is: 18,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.67 : 27,755.26 = 13,217.66 : x
  2. Step 2: Convert to fraction form
    20,110.67/27,755.26 = 13,217.66/x
  3. Step 3: Cross multiply
    20,110.67x = 27,755.26 × 13,217.66
  4. Step 4: Simplify right side
    20,110.67x = 366,859,418.07
  5. Step 5: Solve for x
    x = 366,859,418.07/20,110.67
  6. Step 6: Final answer
    x = 18,242.03

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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.