Home / 35,785.05-49,382.42-19,869.09

Finding the Fourth Proportional to 35,785.05, 49,382.42 and 19,869.09

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Solution

The fourth proportional to 35,785.05, 49,382.42 and 19,869.09 is: 27,418.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,785.05 : 49,382.42 = 19,869.09 : x
  2. Step 2: Convert to fraction form
    35,785.05/49,382.42 = 19,869.09/x
  3. Step 3: Cross multiply
    35,785.05x = 49,382.42 × 19,869.09
  4. Step 4: Simplify right side
    35,785.05x = 981,183,747.40
  5. Step 5: Solve for x
    x = 981,183,747.40/35,785.05
  6. Step 6: Final answer
    x = 27,418.82

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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.