To find: Four arithmetic means between 4 and 29

Using Formula, An = a + nd
First arithmetic mean, A1 = a + d
= 4 + 5
= 9
Second arithmetic mean, A2 = a + 2d
= 4 + 2(5)
= 4 + 10
= 14
Third arithmetic mean, A3 = a + 3d
= 4 + 3(5)
= 4 + 15= 19
Fourth arithmetic mean, A4 = a + 4d
= 4 + 4(5)
= 4 + 20
= 24
Ans) The four arithmetic means between 4 and 29 are 9, 14, 19 and 24