Home / 28,576.94-39,435.29-15,829.61

Finding the Fourth Proportional to 28,576.94, 39,435.29 and 15,829.61

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Solution

The fourth proportional to 28,576.94, 39,435.29 and 15,829.61 is: 21,844.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.94 : 39,435.29 = 15,829.61 : x
  2. Step 2: Convert to fraction form
    28,576.94/39,435.29 = 15,829.61/x
  3. Step 3: Cross multiply
    28,576.94x = 39,435.29 × 15,829.61
  4. Step 4: Simplify right side
    28,576.94x = 624,245,181.79
  5. Step 5: Solve for x
    x = 624,245,181.79/28,576.94
  6. Step 6: Final answer
    x = 21,844.37

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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.