The volume ratio of a cylinder and a cone with the same base area is 3:1. The height of the cone is 12 cm, what is the height of the cylinder in cm.
底面积相等的圆柱体和圆锥体，它们的体积比是3：1．圆锥体的高是12厘米，圆柱体的高是多少厘米．
<result>12</result>