The arithmetic sequence is 12, 16, 20, .........

Now we can find the common difference d by subtracting two consecutive terms.

d = 4

Now add 4 to the third term of the sequence , and then continue adding 4 untill

the next four terms are found.

.

The next four terms of the sequence are 24, 28, 32, and 36.

The next four terms of the sequence are 24, 28, 32, and 36.