Home / 27,775.38-38,329.84-15,028.56

Finding the Fourth Proportional to 27,775.38, 38,329.84 and 15,028.56

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Solution

The fourth proportional to 27,775.38, 38,329.84 and 15,028.56 is: 20,739.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,775.38 : 38,329.84 = 15,028.56 : x
  2. Step 2: Convert to fraction form
    27,775.38/38,329.84 = 15,028.56/x
  3. Step 3: Cross multiply
    27,775.38x = 38,329.84 × 15,028.56
  4. Step 4: Simplify right side
    27,775.38x = 576,042,300.23
  5. Step 5: Solve for x
    x = 576,042,300.23/27,775.38
  6. Step 6: Final answer
    x = 20,739.31

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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.