Well, you know what's about to follow this sentence...

By going to the PING website, you learned that your PW should be 47°. It may be 46. It may be 48. It may be even further out of spec. Not knowing what your SW is, it's time to get the lofts checked. Then buy (or have something built) that splits the gap. Even if you grab a wedge out of the bargain bin, it needs to be 'loft verified'.