Home / 31,007.96-42,791.54-16,860.92

Finding the Fourth Proportional to 31,007.96, 42,791.54 and 16,860.92

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Solution

The fourth proportional to 31,007.96, 42,791.54 and 16,860.92 is: 23,268.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,007.96 : 42,791.54 = 16,860.92 : x
  2. Step 2: Convert to fraction form
    31,007.96/42,791.54 = 16,860.92/x
  3. Step 3: Cross multiply
    31,007.96x = 42,791.54 × 16,860.92
  4. Step 4: Simplify right side
    31,007.96x = 721,504,732.62
  5. Step 5: Solve for x
    x = 721,504,732.62/31,007.96
  6. Step 6: Final answer
    x = 23,268.37

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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.