Home / 28,431.57-39,235.12-16,496.97

Finding the Fourth Proportional to 28,431.57, 39,235.12 and 16,496.97

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Solution

The fourth proportional to 28,431.57, 39,235.12 and 16,496.97 is: 22,765.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.57 : 39,235.12 = 16,496.97 : x
  2. Step 2: Convert to fraction form
    28,431.57/39,235.12 = 16,496.97/x
  3. Step 3: Cross multiply
    28,431.57x = 39,235.12 × 16,496.97
  4. Step 4: Simplify right side
    28,431.57x = 647,260,597.59
  5. Step 5: Solve for x
    x = 647,260,597.59/28,431.57
  6. Step 6: Final answer
    x = 22,765.56

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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.