Home / 27,666.80-38,180.56-15,091.54

Finding the Fourth Proportional to 27,666.80, 38,180.56 and 15,091.54

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Solution

The fourth proportional to 27,666.80, 38,180.56 and 15,091.54 is: 20,826.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666.80 : 38,180.56 = 15,091.54 : x
  2. Step 2: Convert to fraction form
    27,666.80/38,180.56 = 15,091.54/x
  3. Step 3: Cross multiply
    27,666.80x = 38,180.56 × 15,091.54
  4. Step 4: Simplify right side
    27,666.80x = 576,203,448.46
  5. Step 5: Solve for x
    x = 576,203,448.46/27,666.80
  6. Step 6: Final answer
    x = 20,826.53

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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.