English Translation
Tom was in trouble financially.
Shouldn’t it be finanzielle?
Tom was in trouble financially.
Shouldn’t it be finanzielle?
Both are ok.
Tom hatte finanziell Probleme. - Tom was in trouble financially.
Tom hatte finanzielle Probleme. - Tom had financial problems.
Yes. I don’t know what the grammatical term for this type of phrasing is.
It works for other words, too.
For example:
In everyday conversation it would not really matter which Version you use to be understood.