Home / 28,576.69-39,434.94-15,829.36

Finding the Fourth Proportional to 28,576.69, 39,434.94 and 15,829.36

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Solution

The fourth proportional to 28,576.69, 39,434.94 and 15,829.36 is: 21,844.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.69 : 39,434.94 = 15,829.36 : x
  2. Step 2: Convert to fraction form
    28,576.69/39,434.94 = 15,829.36/x
  3. Step 3: Cross multiply
    28,576.69x = 39,434.94 × 15,829.36
  4. Step 4: Simplify right side
    28,576.69x = 624,229,861.84
  5. Step 5: Solve for x
    x = 624,229,861.84/28,576.69
  6. Step 6: Final answer
    x = 21,844.02

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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.