Home / 27,666.80-38,180.22-15,091.76

Finding the Fourth Proportional to 27,666.80, 38,180.22 and 15,091.76

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Solution

The fourth proportional to 27,666.80, 38,180.22 and 15,091.76 is: 20,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666.80 : 38,180.22 = 15,091.76 : x
  2. Step 2: Convert to fraction form
    27,666.80/38,180.22 = 15,091.76/x
  3. Step 3: Cross multiply
    27,666.80x = 38,180.22 × 15,091.76
  4. Step 4: Simplify right side
    27,666.80x = 576,206,716.99
  5. Step 5: Solve for x
    x = 576,206,716.99/27,666.80
  6. Step 6: Final answer
    x = 20,826.65

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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.