Home / 31,865.68-43,975.44-18,256

Finding the Fourth Proportional to 31,865.68, 43,975.44 and 18,256

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Solution

The fourth proportional to 31,865.68, 43,975.44 and 18,256 is: 25,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,865.68 : 43,975.44 = 18,256 : x
  2. Step 2: Convert to fraction form
    31,865.68/43,975.44 = 18,256/x
  3. Step 3: Cross multiply
    31,865.68x = 43,975.44 × 18,256
  4. Step 4: Simplify right side
    31,865.68x = 802,815,632.64
  5. Step 5: Solve for x
    x = 802,815,632.64/31,865.68
  6. Step 6: Final answer
    x = 25,193.74

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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.