Home / 28,576.44-39,433.82-15,829.56

Finding the Fourth Proportional to 28,576.44, 39,433.82 and 15,829.56

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Solution

The fourth proportional to 28,576.44, 39,433.82 and 15,829.56 is: 21,843.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.44 : 39,433.82 = 15,829.56 : x
  2. Step 2: Convert to fraction form
    28,576.44/39,433.82 = 15,829.56/x
  3. Step 3: Cross multiply
    28,576.44x = 39,433.82 × 15,829.56
  4. Step 4: Simplify right side
    28,576.44x = 624,220,019.72
  5. Step 5: Solve for x
    x = 624,220,019.72/28,576.44
  6. Step 6: Final answer
    x = 21,843.87

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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.