Home / 31,409.94-43,348.29-18,834.42

Finding the Fourth Proportional to 31,409.94, 43,348.29 and 18,834.42

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Solution

The fourth proportional to 31,409.94, 43,348.29 and 18,834.42 is: 25,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409.94 : 43,348.29 = 18,834.42 : x
  2. Step 2: Convert to fraction form
    31,409.94/43,348.29 = 18,834.42/x
  3. Step 3: Cross multiply
    31,409.94x = 43,348.29 × 18,834.42
  4. Step 4: Simplify right side
    31,409.94x = 816,439,900.14
  5. Step 5: Solve for x
    x = 816,439,900.14/31,409.94
  6. Step 6: Final answer
    x = 25,993.04

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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.