Home / 38,273.94-57,309.39-20,689.38

Finding the Fourth Proportional to 38,273.94, 57,309.39 and 20,689.38

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Solution

The fourth proportional to 38,273.94, 57,309.39 and 20,689.38 is: 30,979.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,273.94 : 57,309.39 = 20,689.38 : x
  2. Step 2: Convert to fraction form
    38,273.94/57,309.39 = 20,689.38/x
  3. Step 3: Cross multiply
    38,273.94x = 57,309.39 × 20,689.38
  4. Step 4: Simplify right side
    38,273.94x = 1,185,695,747.28
  5. Step 5: Solve for x
    x = 1,185,695,747.28/38,273.94
  6. Step 6: Final answer
    x = 30,979.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.