There are 3+1=<<3+1=4>>4 members joining
So the cost is 4*4000=$<<4*4000=16000>>16,000 to join
The monthly fee comes out to 1000*12=$<<1000*12=12000>>12,000 per person per year
So that is 12000*4=$<<12000*4=48000>>48,000
So the total cost is 16,000+48,000=$<<16000+48000=64000>>64,000
So John pays 64000/2=$<<64000/2=32000>>32,000
#### 32000