South Australia (Australia) is 31,754 times larger than Pasig.
South Australia is a state in the southern central part of Australia. It covers some of the most arid parts of the continent. With a total land area of 983,482 square kilometres, it is the fourth largest of Australia's states and territories. Wikipedia
Area: 31 km2 calculated
Pasig, officially the City of Pasig is one of the highly urbanized cities of Metro Manila in the Philippines and was the former capital of the province of Rizal prior to the formation the National Capital Region. Wikipedia