Isco gave Real an eighth-minute lead before Tana levelled with a firm shot.
Wales forward Bale was shown red early in the second half for shoving Jonathan Viera, who scored a penalty after a Sergio Ramos handball.
Kevin-Prince Boateng fired in moments later before Ronaldo’s penalty and header earned Real a point.
Real Madrid’s comeback was not enough to send them back to the top of La Liga. They now trail Barcelona by one point, although they have a game in hand on the champions.
RESULTS
Barcelona 6 – 1 Sporting Gijon
Osasuna 1 – 4 Villarreal
Celta Vigo 2 – 2 Espanyol
Granada 2 – 1 Alaves
Real Madrid 3 – 3 Las Palmas
