Home / 35,786.69-49,385.36-19,871.19

Finding the Fourth Proportional to 35,786.69, 49,385.36 and 19,871.19

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Solution

The fourth proportional to 35,786.69, 49,385.36 and 19,871.19 is: 27,422.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,786.69 : 49,385.36 = 19,871.19 : x
  2. Step 2: Convert to fraction form
    35,786.69/49,385.36 = 19,871.19/x
  3. Step 3: Cross multiply
    35,786.69x = 49,385.36 × 19,871.19
  4. Step 4: Simplify right side
    35,786.69x = 981,345,772.42
  5. Step 5: Solve for x
    x = 981,345,772.42/35,786.69
  6. Step 6: Final answer
    x = 27,422.09

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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.