Home / 31,144.44-42,984.90-18,570

Finding the Fourth Proportional to 31,144.44, 42,984.90 and 18,570

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Solution

The fourth proportional to 31,144.44, 42,984.90 and 18,570 is: 25,629.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,144.44 : 42,984.90 = 18,570 : x
  2. Step 2: Convert to fraction form
    31,144.44/42,984.90 = 18,570/x
  3. Step 3: Cross multiply
    31,144.44x = 42,984.90 × 18,570
  4. Step 4: Simplify right side
    31,144.44x = 798,229,593
  5. Step 5: Solve for x
    x = 798,229,593/31,144.44
  6. Step 6: Final answer
    x = 25,629.92

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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.