Find the number which must be subtracted from each of the numbers 17, 20 and 24 so that the results are in continued proportion ?

• For continued proportion
  these numbers are in G.P so,
  17-x,20-x,24-x,..are in G.P thus,
  formula for G.P,
  (20-x)^2=(17-x)(24-x)
  400+x^2-40x=408-41x+x^2
  x=8
  the numbers are
  9,12,16,48/3,64/3,..
• 12 years agoHelpfull: Yes(1) No(2)
• If we subtract 8 from these numbers then resulting numbers 9, 12 and 16 will be in continued proportion as given below:
  9:12::12:16
  gives 9*16 =12*12
• 12 years agoHelpfull: Yes(1) No(3)