Home / 30,786.26-46,103.79-19,660.10

Finding the Fourth Proportional to 30,786.26, 46,103.79 and 19,660.10

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Solution

The fourth proportional to 30,786.26, 46,103.79 and 19,660.10 is: 29,441.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,786.26 : 46,103.79 = 19,660.10 : x
  2. Step 2: Convert to fraction form
    30,786.26/46,103.79 = 19,660.10/x
  3. Step 3: Cross multiply
    30,786.26x = 46,103.79 × 19,660.10
  4. Step 4: Simplify right side
    30,786.26x = 906,405,121.78
  5. Step 5: Solve for x
    x = 906,405,121.78/30,786.26
  6. Step 6: Final answer
    x = 29,441.87

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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.