CREATE TABLE table_74430 ("Date" TEXT, "Episode" FLOAT, "Official rating 4+" TEXT, "Share 4+" TEXT, "Official rating 16-39" TEXT, "Share 16-39" TEXT)

What is the 16-39 share of the episode with a 4+ share of 30,01%?
SELECT "Share 16-39" FROM table_74430 WHERE "Share 4+" = '30,01%'
SELECT "Share 16-39" FROM "table_74430" WHERE "Share 4+" = '30,01%'