A hypothetical futures contract on an underlying asset whose current market price is 22,000 and which does not pay dividends, has its maturity within one year. If the interest rate on one-year Treasury Bills were 3.5%, what would be their price? And What would happen to its price if the expiration of the future took place within three years? 

Calculate the price of the futures contract for a maturity within four years and a risk-free interest rate of 4.5% per year.