Mr. Gupta invested Rs. X in Scheme Prosperity at 20% per annum, earning compound interest for 2 years, and Rs. Y in Scheme Wealth at 10% per annum, earning simple interest for 2 years. If he earned simple interest from Scheme Prosperity and compound interest from Scheme Wealth, then the total interest earned by him is Rs. 9600 less compared to the previous case. Find the total investment made by Mr. Gupta if the sum invested in Scheme Prosperity is 50% more than that of Scheme Wealth.