Home / 31,709.07-43,759.44-18,284.54

Finding the Fourth Proportional to 31,709.07, 43,759.44 and 18,284.54

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Solution

The fourth proportional to 31,709.07, 43,759.44 and 18,284.54 is: 25,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709.07 : 43,759.44 = 18,284.54 : x
  2. Step 2: Convert to fraction form
    31,709.07/43,759.44 = 18,284.54/x
  3. Step 3: Cross multiply
    31,709.07x = 43,759.44 × 18,284.54
  4. Step 4: Simplify right side
    31,709.07x = 800,121,012.26
  5. Step 5: Solve for x
    x = 800,121,012.26/31,709.07
  6. Step 6: Final answer
    x = 25,233.19

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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.