Home / 28,431.69-39,235.29-16,497.09

Finding the Fourth Proportional to 28,431.69, 39,235.29 and 16,497.09

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Solution

The fourth proportional to 28,431.69, 39,235.29 and 16,497.09 is: 22,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.69 : 39,235.29 = 16,497.09 : x
  2. Step 2: Convert to fraction form
    28,431.69/39,235.29 = 16,497.09/x
  3. Step 3: Cross multiply
    28,431.69x = 39,235.29 × 16,497.09
  4. Step 4: Simplify right side
    28,431.69x = 647,268,110.31
  5. Step 5: Solve for x
    x = 647,268,110.31/28,431.69
  6. Step 6: Final answer
    x = 22,765.73

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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.