Home / 31,089.97-42,902.90-16,942.51

Finding the Fourth Proportional to 31,089.97, 42,902.90 and 16,942.51

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Solution

The fourth proportional to 31,089.97, 42,902.90 and 16,942.51 is: 23,379.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,089.97 : 42,902.90 = 16,942.51 : x
  2. Step 2: Convert to fraction form
    31,089.97/42,902.90 = 16,942.51/x
  3. Step 3: Cross multiply
    31,089.97x = 42,902.90 × 16,942.51
  4. Step 4: Simplify right side
    31,089.97x = 726,882,597.76
  5. Step 5: Solve for x
    x = 726,882,597.76/31,089.97
  6. Step 6: Final answer
    x = 23,379.97

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