Home / 31,448.75-43,399.44-18,020.57

Finding the Fourth Proportional to 31,448.75, 43,399.44 and 18,020.57

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Solution

The fourth proportional to 31,448.75, 43,399.44 and 18,020.57 is: 24,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,448.75 : 43,399.44 = 18,020.57 : x
  2. Step 2: Convert to fraction form
    31,448.75/43,399.44 = 18,020.57/x
  3. Step 3: Cross multiply
    31,448.75x = 43,399.44 × 18,020.57
  4. Step 4: Simplify right side
    31,448.75x = 782,082,429.48
  5. Step 5: Solve for x
    x = 782,082,429.48/31,448.75
  6. Step 6: Final answer
    x = 24,868.48

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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.