Home / 27,755.09-38,301.24-15,179.57

Finding the Fourth Proportional to 27,755.09, 38,301.24 and 15,179.57

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Solution

The fourth proportional to 27,755.09, 38,301.24 and 15,179.57 is: 20,947.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,755.09 : 38,301.24 = 15,179.57 : x
  2. Step 2: Convert to fraction form
    27,755.09/38,301.24 = 15,179.57/x
  3. Step 3: Cross multiply
    27,755.09x = 38,301.24 × 15,179.57
  4. Step 4: Simplify right side
    27,755.09x = 581,396,353.67
  5. Step 5: Solve for x
    x = 581,396,353.67/27,755.09
  6. Step 6: Final answer
    x = 20,947.38

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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.