Home / 29,661.45-40,931.79-16,231.80

Finding the Fourth Proportional to 29,661.45, 40,931.79 and 16,231.80

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Solution

The fourth proportional to 29,661.45, 40,931.79 and 16,231.80 is: 22,399.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,661.45 : 40,931.79 = 16,231.80 : x
  2. Step 2: Convert to fraction form
    29,661.45/40,931.79 = 16,231.80/x
  3. Step 3: Cross multiply
    29,661.45x = 40,931.79 × 16,231.80
  4. Step 4: Simplify right side
    29,661.45x = 664,396,628.92
  5. Step 5: Solve for x
    x = 664,396,628.92/29,661.45
  6. Step 6: Final answer
    x = 22,399.33

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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.