Fourth-Generation Languages (4GLs) are high-level programming languages designed to be more user-friendly and efficient than their predecessors. They focus on reducing the complexity of coding by allowing developers to use more natural language and abstract concepts. This makes it easier to create applications without needing extensive programming knowledge. 4GLs are often used for database management, report generation, and data manipulation. They enable faster development cycles and are commonly employed in business environments. Examples of 4GLs include SQL, RPG, and ABAP, which help streamline tasks and improve productivity in software development.