Not so. The length is completely dependent on frequency. 1/4 wavelength for the 72 MHz band is about 39 inches. 1/4 wavelength for the 50 MHz band is longer, 59 inches, and is even longer for the CB bands, around 27 MHz, which is around 102 inches.

Now, antennas may be cut in shorter lengths, but they are in the wavelenth for the frequency involved but increments of 1/8 wavelength.